Published on Nov 29, 2012 by 2011MESSAGE
2012 IS STRANGE Part 70 NOVEMBER : Footage from November (15 last days) 2012 conclusion.
My serie include strange phenomena of all kind and awesome natural events or beautiful phenomena . Enjoy ! Always checking hard for sources
- Syap – Versatile (Original Mix)
- Moderat – Rusty Nails
November 21, 2012 – NEW ZEALAND – A teacher who was on Mt Tongariro with a group of 90 students has captured the ‘‘absolutely spectacular’’ eruption of the volcano on video. GNS Science confirmed the eruption, at the Te Maari crater, happened shortly after 1.20pm. It is the second eruption on the mountain this year; an eruption on August 6 was the first on Tongariro for more than 100 years. Tamatea Intermediate teacher Lomi Schaumkel said they were near the Katetahi hot springs when eruption began. “We were right up there next to it. It was just amazing. It was pretty scary from where we were and it just looked absolutely spectacular, the ash that came out. It really did look like one of those atom bomb explosions, and it made a rumbling sound.’’ There were 90 students, six parents and four teachers in the group. ‘‘Some panicked, some didn’t. Everyone came down safely and it was great.” The group was about 1 km away from the eruption, Schaumkel said. “We saw all these tourists running away from it. We didn’t stick around long.” A further 20 Year 8 pupils from Gulf Harbour School in Whangaparoa were making their way off the track with parents and guides after being just 750m from where the crater erupted. Two bus drivers from Nimon and Sons, who took the Napier children to the mountain, had reported back to their base that they could see an ash plume 2km high, a spokesman said. Department of Conservation (DOC) area manager Jonathan Maxwell said 30 to 50 people were being evacuated from the Tongariro Crossing track. No injuries had been reported but the crossing had been closed. Today’s eruption lasted for about five minutes. GNS has updated the alert on Tongariro to level 2, meaning there is “minor eruptive activity.” The aviation color code has been lifted to red, meaning there is “significant emission of ash” into the atmosphere. In this case, the rebel advance has disrupted all the humanitarian work that has been underway as aid workers have been forced to flee. Autesserre said there were also reports of looting by the Congolese government forces as they evacuated Goma, which may in part explain why thousands of people welcomed the rebel troops. –Stuff
Published on Oct 22, 2012 by Marygreeley1954
Kilauea lava lake reaches record height
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Published on Oct 16, 2012 by dutchsinse
Oct 16 going into the 17th 2012 — multiple plume returns showing on RADAR — coming from the western portion of the Pinacate Volcanic field…. just south of the Arizona border…. north Mexico … near the border.
Seen on the south Arizona KYUX NEXRAD RADAR — also 1KM , or 2KM view: multiple systems showing this… not just college of dupage.
also visible on WDSS-ii nexrad feeds:
also visible on quality controlled weather.gov : http://radar.weather.gov/ridge/radar.php?rid=yux&product=N0R&overlay=…
approximate plume location: Western portion of the Pinacate Volcanic complex:
31°49’53.14″N , 113°39’32.69″W
Last time this happened.. on Sept 16 2012… here is the video I made during this last event exactly one month ago (today being the 17th of oct 2012 ):
October 14, 2012 – BOLIVIA – Geophysicists at University of California, San Diego (UCSD) have identified a unique phenomenon in Altiplano-Puna plateau, located in the central Andes near the borders of Bolivia, Chile and Argentina. Magma underneath the Earth’s crust is forcing the ground up in one spot, and at the same time sinking the ground around it. The result is something the researchers have described as the “sombrero uplift,” after the popular Mexican hat. According to their report on the phenomenon, published in the journal Science, the two UC San Diego scientists recorded uplift in the crust that measured about 0.4 inches per year for 20 years across an area 62 miles wide; the surrounding area sunk at a lower rate—about eight-hundredths of an inch. “It’s a subtle motion, pushing up little by little every day, but it’s this persistence that makes this uplift unusual. Most other magmatic systems that we know about show episodes of inflation and deflation,” said Yuri Fialko, a professor of geophysics at UCSD and Planetary Physics at the Scripps Institute of Oceanography. Fialko and co-author Jill Pearse said the phenomenon was the result of a diapir, or a blob of magma, that rises to Earth’s crust like heated wax inside a lava lamp. Using satellite data from European Remote Sensing (ERS) and Envisat missions, the geophysicists were able to study the uplift in great detail. In 2006, the team asked for the satellites to gather more data from their orbits over Altiplano-Puna. “It was really important to have good data from different lines of sight, as this allowed us to estimate contributions from vertical and horizontal motion of Earth’s surface, and place crucial constraints on depth and mechanism of the inflation source,” Fialko said. “Back in 2006, it looked like the satellites stopped acquiring data from the ascending orbits over the area of interest. Fortunately, ESA was very responsive to our requests, and generated an excellent dataset that made our study possible. Satellite data and computer models allowed us to make the important link between what’s observed at the surface and what’s happening with the magma body at depth,” he added. Fialko said the study’s findings could fuel future research around magmatic events, including the formation of large calderas. Although this diapir in the Altiplano-Puna plateau appears unlikely to cause such a phenomenon—the creation of large calderas, “supervolcanoes,” are highly destructive events that spew thousands of cubic kilometers of magma into the atmosphere. An event of this type would dwarf the Icelandic volcano eruption in 2011 that ejected large amounts of ash into the atmosphere and disrupted global air travel, Fialko said. Diapirs have been known to exist before, but this new study is the first to recognize an active diapir currently rising through the crust. Fialko said a less prominent uplift phenomenon is taking place near Socorro, New Mexico. The Altiplano-Puna plateau is a highly active area for magma and is part of a South American volcanic arc that extends along the northwest side of the continent. Experts have described the area as the largest known active magma body in Earth’s continental crust. –Red Orbit
Excerpt: Wiser Now: Is there a hierarchy or sequence of geological events that will signal the start of an ELE? Alvin Conway: “The planet’s magnetic field strength declines, there is magnetic polarity deviation or migration, earthquakes and volcanic eruptions increase, there are changes in ocean temperature and salinity, and the climate basically unravels. This is underscored by an expansion of magma and rise in convection in the planet’s mantle. The earth’s crust experienced the most violence in the Pacific Ring of Fire from catastrophic rupturing when there was a magmatic expansion of the planet. As I wrote in The 7th Protocol, the first time the planet had a magmatic expansion, the fountains of the great deep were broken up and geysers of hot water destroyed the world by a flood. The rupture was very pronounced in the Pacific basin, which is why the underlying geology is so fractured, and why the region is now so seismically and volcanically active. Another massive fissure occurred along the Mid-Atlantic Ridge, which almost cracked the crust of the planet in two. The first magmatic expansion released the fountains of water from the deep. The next expansion will unleash the magma from faults, cracks, and plumes already present in the crust. Volcanoes are erupting en masse, and will continue to do so to dissipate the build-up of thermal pressure in an attempt to prevent a catastrophe. If the planet’s heat cycle cannot be consoled by planetary geologic processes, the spectrum tilts toward an Extinction Level Event (ELE). Consequently, volcanoes also are our first telltale sign that something has gone awry with the planet. We’re witnessing evidence of another magmatic expansion across the planet, with near simultaneous ground inflation occurring from magma intrusion at Yellowstone, Long Valley, Uturuncu in Bolivia, El Hierro in the Canary Islands, Santorini in Greece, Marsili in the Tyrrhenian Sea, Katla in Iceland, and the ground around Mt. Fuji in Japan. These are the early warning signs, along with increased seismicity along tectonic plate boundaries (especially in subduction zones), that something is amiss. No part of the planet will be left unscathed from these changes.” – Wiser Now, October 2012 – Earthchanges coming, Ready or Not – IPAD Mag APP
September 19, 2012 – INDONESIA – As two volcanos in the eastern part of Indonesia continued to erupt on Monday, Mount Merapi in Central Java has been displaying increasing activity, with rumblings in the past week. “In the evenings, there are rumblings that are accompanied by the ground shaking,” Sapto, from Samiran village in the district of Boyolali on the slope of Merapi, said on Monday. He said that the 2,968-meter volcano was also active during the day, as evidenced by the thick column of ash billowing out from its crater. Sapto said that as of Monday, local authorities had not issued any information to the public regarding the volcano. Subiso, head of Selo subdistrict in Boyolali, confirmed that no official advisories or warnings had been issued yet about the increased activity on Merapi. However, he said that the rumbling sounds from the volcano were almost routine in the area, and added that the situation there “is still safe.” Ngatini, another resident said that the rumblings did not disturb local residents too much. “If an eruption is imminent, the rumbling will be heard continuously and there will be some ash rain,” she said. Merapi last erupted in October 2010, spewing enormous amounts of ash. Pyroclastic flows, fast-moving currents of superheated gas and rock, killed more than 300 people along the heavily populated slopes and forced 350,000 to evacuate. Meanwhile, with a small eruption still taking place on Mount Lokon in Tomohon, North Sulawesi, authorities there are maintaining the alert status for the volcano and have banned all human activities within a 2.5-kilometer radius of the crater. Farid Sukendar, head of the Lokon volcano observation post, said that the mountain erupted after dusk on Saturday, spewing superheated volcanic material up to 600 meters and ash up to 1,500 meters into the atmosphere. “This volcano is active and therefore we should remain vigilant because it could erupt any time,” he said. Arnold Poli, secretary of the town of Tomohon, located at the base of the mountain, said that the authorities were continuously monitoring the volcano. He said that the series of eruptions had not affected the activities of the local population but added the authorities were calling on everyone to remain alert. He also said that despite the volcanic activity, the government had yet to evacuate anyone from the villages of Kinilow and Kakaskasen III, the two villages closest to the smoldering crater. “No one has yet been ordered to evacuate,” he said. Mount Soputan, in North Sulawesi’s South Minahasa district, and Mount Karangetang in the Sitaro Islands district across from the northernmost tip of Sulawesi remained on a government-ordered standby alert status, or just one rung below the most severe alert. “There are now three volcanoes in North Sulawesi under the standby alert status,” said Hooke Makarawung, head of the North Sulawesi Disaster Mitigation Office (BPBD). “People should remain vigilant.” He said that about 110 people had been evacuated from the slopes of Karangetang and that the North Sulawesi administration had sent relief supplies to them. Djauhari Kansil, the deputy governor of North Sulawesi, said that those evacuated were from East Siau subdistrict, but he added that in the daytime, the people were allowed to return to their village to work their fields. They have been asked to return to the shelters in the evening. The volcanology office also announced on Monday that it had raised the alert level for Mount Gamalama, on Ternate Island in North Maluku province, to standby. The office, on its website, said that the alert status was raised on Sunday. The 1,715-meter Gamalama, a conical volcano that dominates Ternate Island, last erupted in December, destroying more than 100 houses and leaving farmers devastated after a thick layer of ash smothered fruit trees and crops. Four villagers were confirmed dead in that eruption. Metro TV reported on Monday that the mountain spewed a white column of ash about 500 meters into the atmosphere. There was also some volcanic debris thrown up by the mountain but on a smaller scale. It also said the local volcanology authorities had declared a 2.5-kilometer exclusion radius around the crater of the erupting volcano. On Sunday evening, the smoke and volcanic debris thrown up by Gamalama reached about 1,000 meters into the atmosphere, according to the report. Anak Krakatau in the Sunda Strait between Java and Sumatra also showed some signs of activity earlier this month. The volcano is the remnant of Krakatau, the site of an earth-shattering eruption in 1883. -Jakarta Globe
September 18, 2012 – JAKARTA, Indonesia – One of Indonesia’s most active volcanoes has erupted, shooting ash and smoke nearly 1 1/2 kilometers (one mile) into the sky. State volcanology official Kristianto says Mount Soputan on central Indonesia’s Sulawesi Island erupted Tuesday afternoon. Kristianto, who uses one name, says there is no plan for an immediate evacuation since the nearest villages are outside the danger area of about 6.5 kilometers (4 miles) from the crater. Mount Soputan is about 1,350 miles (2,160 kilometers) northeast of Jakarta. It last erupted in July last year, causing no casualties. Indonesia straddles the “Pacific Ring of Fire,” an arc of volcanoes and fault lines around the Pacific Basin. It has more active volcanoes than any other nation. Another mountain, Gamalama, erupted last week on the Molucca Islands. –Huffington Post
September 18, 2012 – INDONESIA – Two of Indonesia’s most active volcanoes erupted on Saturday, prompting the government to issue warnings to populations living near the affected mountains. The National Disaster Mitigation Agency (BNPB) said on Sunday that new eruption started at Lokon in North Sulawesi and Gamalama at Ternate in North Maluku. Lokon generated a 1,500-meter high ash plume and violent strombolian (low-level) activity with some lava flow, while Gamalama produced a shower of ashes that covered the nearby city. Sutopo Purwo Nugroho, a spokesman for BNPB, said on Sunday that Lokon, located in North Sulawesi’s Tomohon area, erupted at 7 p.m. on Saturday. The explosion from the eruption shattered windows of the command post built to monitor the activities of the volcano, he said. The agency, Sutopo said, had issued warnings to local administrations to prepare precautionary measures, and called on people to remain alert. “The residents don’t have to be evacuated but they must not do any activities within the range of five kilometers from the volcano,” Sutopo said. He said that the BNPB had asked the Tomohon administration to raise the awareness of residents. Meanwhile, the Gamalama spurt sent ashes into the air for about 15 minutes at 11 p.m., before the wind carried the ashes toward the North Maluku capital of Ternate. “The ashes came down on the city, decreasing visibility to only 50 meters,” Sutopo said. He said BNPB’s local branch went to the affected area and set up four stations to help people in the event of a larger eruption. “Here also, we don’t see any need to evacuate people. But we will stay on high alert,” the official said. Lokon has erupted several times previously, with an explosion in July 2011 forcing more than 5,200 people to be evacuated. The eruption created huge clouds of ash as high as 3,500 meters. Lokon’s last deadly eruption was in 1991, when a Swiss tourist was killed. Last December, Gamalama erupted, resulting in four villagers being killed and dozens others being hospitalized. About 1,000 residents were forced to evacuate. The Indonesian archipelago has dozens of active volcanoes and straddles major tectonic fault lines known as the “Ring of Fire” between the Pacific and Indian oceans. Earlier this month, there was volcanic activity at Lampung’s Anak Krakatau. –Jakarta Globe
September 17, 2012 – TERNATE, Indonesia – Mount Gamalama in Ternate, North Maluku, spewed out volcanic ash on Sunday, showering some parts of the provincial capital that is currently hosting an international sailing event: Sail Morotai 2012. There were no immediate reports of injuries or damage. However, guests of Corner Palace Hotel panicked when a rain of ash fell for about 15 minutes. State volcanologist Kristianto says Mount Gamalama in the Molucca Islands sprang to life last week. It unleashed two strong eruptions over the weekend, sending volcanic ash as high as 1 kilometer (0.62 miles). Kristianto, who uses only one name, says slow-moving red lava was visible at the peak of the eruption Monday. Matut, 48, a local resident, said ask also rained down on Saturday night at 11 p.m. until the small hours of Sunday morning, Antara news agency reported. Volcanic ash mostly blanketed the eastern and southern parts of Ternate, the capital of North Maluku province. Villages have been blanketed with thick ash but no evacuations have been ordered. Gamalama last erupted late last year, and its mudflows killed four villagers two weeks later. Indonesia is a vast archipelago with millions of people living on mountains or near fertile flood plains. Seasonal downpours here often cause landslides. –Jakarta Post
10 Sep 12
A new survey suggests that the chamber of molten rock beneath Santorini’s volcano expanded 10-20 million cubic metres – up to 15 times the size of London’s Olympic Stadium – between January 2011 and April 2012.
The growth of this ‘balloon’ of magma has seen the surface of the island rise 8-14 centimetres during this period, a team led by Oxford University scientists has found. The results come from an expedition, funded by the UK’s Natural Environment Research Council, which used satellite radar images and Global Positioning System receivers (GPS) that can detect movements of the Earth’s surface of just a few millimetres.
The findings are helping scientists to understand more about the inner workings of the volcano which had its last major explosive eruption 3,600 years ago, burying the islands of Santorini under metres of pumice. However, it still does not provide an answer to the biggest question of all: when will the volcano next erupt?
A report of the research appears in this week’s Nature Geoscience.
In January 2011, a series of small earthquakes began beneath the islands of Santorini. Most were so small they could only be detected with sensitive seismometers but it was the first sign of activity beneath the volcano to be detected for 25 years.
Following the earthquakes Michelle Parks, an Oxford University DPhil student, spotted signs of movement of the Earth’s surface on Santorini in satellite radar images. Oxford University undergraduate students then helped researchers complete a new survey of the island.
Parks, who is based in Oxford University’s Department of Earth Sciences and is an author of the paper, said: ‘During my field visits to Santorini in 2011, it became apparent that many of the locals were aware of a change in the behaviour of their volcano. The tour guides, who visit the volcano several times a day, would update me on changes in the amount of strong smelling gas being released from the summit, or changes in the colour of the water in some of the bays around the islands.
There are very few volcanoes where we have such detailed information about their past history.
Professor David Pyle
‘On one particular day in April 2011, two guides told me they had felt an earthquake while they were on the volcano and that the motion of the ground had actually made them jump. Locals working in restaurants on the main island of Thera became aware of the increase in earthquake activity due to the vibration and clinking of glasses in their bars.’
Dr Juliet Biggs of Bristol University, also an author of the paper, said: ‘People were obviously aware that something was happening to the volcano, but it wasn’t until we saw the changes in the GPS, and the uplift on the radar images that we really knew that molten rock was being injected at such a shallow level beneath the volcano.
‘Many volcanologists study the rocks produced by old eruptions to understand what happened in the past, so it’s exciting to use cutting-edge satellite technology to link that to what’s going on in the volcanic plumbing system right now.’
Professor David Pyle of Oxford University’s Department of Earth Sciences, an author of the paper, said: ‘For me, the challenge of this project is to understand how the information on how the volcano is behaving right now can be squared with what we thought we knew about the volcano, based on the studies of both recent and ancient eruptions. There are very few volcanoes where we have such detailed information about their past history.’
The team calculate that the amount of molten rock that has arrived beneath Santorini in the past year is the equivalent of about 10-20 years growth of the volcano. But this does not mean that an eruption is about to happen: in fact the rate of earthquake activity has dropped off in the past few months.
Published on Sep 13, 2012 by Sheilaaliens
http://sheilaaliens.net/?p=1145 Unless it happens to be a fire… plz provide info/link if you find a fire near there (The Salton Sea, CA/San Fernando Valley) that can account for this.
The plume video was uploaded by Daniel Zermeno on Sep. 12, not sure if its from the 12th or a day prior perhaps.
http://www.youtube.com/user/danielzermeno81 and not that it matters, but he seems unaffiliated with our crazy crowd of crater chasers – just a random dude who noticed it where he lives – so skeptics, be damned – something is going on.
Potential for volcanic activity in Salton Sea – USA Today (2011)
Published on Sep 13, 2012 by Suspicious0bservers
Isaac Reversed Mississippi: http://www.weather.com/news/weather-hurricanes/miss-river-flowing-backward-is…
Vegas Flooding: http://www.weather.com/news/vegas-flooding-20120912
Utah Flood: http://www.weather.com/weather/videos/news-41/top-stories-169/residents-recov…
Nigeria Flood: http://earthobservatory.nasa.gov/IOTD/view.php?id=79149
Himalayan Melting: http://www.sciencedaily.com/releases/2012/09/120912125826.htm
Arctic Ice Melt: http://www.weather.com/weather/videos/news-41/top-stories-169/arctic-ice-melt…
And this: http://www.weather.com/news/arctic-sea-ice-record-low-20120911
Wunderground Typhoon & Tropical Storm Map: http://www.wunderground.com/tropical/
June 9, 2012
Those reality show contestants competing for a bunker might not be so crazy after all.
According to a new report, climate change, population growth, and the destruction of natural ecosystems could push the Earth towards a “state shift” in the biosphere, a global “tipping point” that might result in mass extinction, among other things. “It really will be a new world, biologically, at that point,” said Anthony Barnosky, professor of integrative biology at the UC Berkeley, and the lead author of the review paper. “The data suggests that there will be a reduction in biodiversity and severe impacts on much of what we depend on to sustain our quality of life, including, for example, fisheries, agriculture, forest products and clean water. This could happen within just a few generations.”
The report, from 22 scientists from The Berkeley Initiative in Global Change Biology (and first pointed out by James Fallows of The Atlantic in a post titled, “I fear this may be the most important news of 2012″), says that there’s no certainty that the tipping point will happen, or when. But it’s certainly possible, especially if we hit a threshold where around 50 percent of the planet’s land goes to agriculture or urban purposes. Currently we’re at 43 percent.
“Can it really happen?” Barnosky asks. “Looking into the past tells us unequivocally that, yes, it can really happen. It has happened. The last glacial/interglacial transition 11,700 years ago was an example of that.”
Here’s video with more from Barnosky:
– September 3, 2012
A new phase of activity has started at Krakatau volcano. A large explosion occurred early today September 3, 2012 (01:32 UTC) and produced an ash plume that reached 14,000 ft (4.2 km) according to Darwin VAAC.
Volcanic ash from the increasingly active Anak Krakatau has reached a number of areas in Lampung, prompting officials to issue a warning for local residents and tourists. According to state news agency Antara, the ash was carried by wind from the southeast to the south, reaching Bandarlampung, about 130 kilometers away from Krakatau.
“It is rather unusual for the dust to be this thick,” said Juniardi, a resident of Bandarlampung who complained that the falling dust was also hampering visibility. (Jakarta Globe)
A report from the volcanology office in Bandung shows that the activities of Anak Krakatau has been on the rise over the past few days, reaching almost 90 eruptions per day.
Nurhuda, head of the observation and information section of the Meteorology, Climatology and Geophysics Agency (BMKG) in Lampung, said the report showed the volcano spewed red hot lava up to 300 meters above its peak. “More than 100 volcanic quakes and tremors have been recorded,” he added.
The renowned volcano Krakatau (frequently misstated as Krakatoa) lies in the Sunda Strait between Java and Sumatra. Collapse of the ancestral Krakatau edifice, perhaps in 416 AD, formed a 7-km-wide caldera. Remnants of this ancestral volcano are preserved in Verlaten and Lang Islands; subsequently Rakata, Danan and Perbuwatan volcanoes were formed, coalescing to create the pre-1883 Krakatau Island.
Caldera collapse during the catastrophic 1883 eruption destroyed Danan and Perbuwatan volcanoes, and left only a remnant of Rakata volcano. This eruption, the 2nd largest in Indonesia during historical time, caused more than 36,000 fatalities, most as a result of devastating tsunamis that swept the adjacent coastlines of Sumatra and Java. Pyroclastic surges traveled 40 km across the Sunda Strait and reached the Sumatra coast. After a quiescence of less than a half century, the post-collapse cone of Anak Krakatau (Child of Krakatau) was constructed within the 1883 caldera at a point between the former cones of Danan and Perbuwatan. Anak Krakatau has been the site of frequent eruptions since 1927. (Volcano.si.edu)
Published on Sep 11, 2012 by dutchsinse
After a period of relative silence, Sakurajima Volcano in Japan has given off a spectacular eruption. Large volumes of magma/lava , static discharge lightning, ash, and steam are propelled miles into the air. Still on elevated alert around the area in south Japan from the agency which monitors this chain of volcanoes.
mirrored with permission from:
Published on Aug 23, 2012 by NibiruMagick2012
Close to 100 tows sit motionless in the shriveled Mississippi River along an 11-mile stretch outside of Greenville, Miss. For every day a single towboat sits idle, it costs about $10,000. So when you’ve got at least 97 of them stranded, those costs start piling up quickly.
Auckland residents may have little warning before volcanic eruption
Scientist proposed cloud engineering as response to global warming
“Why in the World are They Spraying?” NEW Critically Acclaimed Documentary [HD FULL]
Officials: Sinkhole measurements unavailable — Police want study of “simultaneous venting of the aquifer as the exploratory rig is being drilled”
By Cleo Fraser
Tue Aug 7 2012
Mt Tongariro is now calmer after the first eruption in more than a century covered parts of New Zealand’s central North Island in ash.
The volcano on Monday spewed ash from the Te Maari craters on the northern side of the mountain, prompting a safety warning for the central North Island.
Rocks fell within 1km of the eruption, damaging Ketetahi Hut – one of four trampers’ huts on the mountain – but there have been no reports of injuries.
Three people were evacuated from Mangatepopo Hut southwest of Mt Tongariro on Tuesday morning.
Scientists believe the small-scale eruption, which had abated by Tuesday morning, was driven by steam rather than molten rock. They said it came without warning.
GNS Science volcanologist Michael Rosenberg told AAP the eruption would have lasted only a few minutes and was followed by a number of minor earthquakes.
“There’ll be a few more minor quakes but for the moment it’s pretty quiet,” he said.
“At the moment there is just steam and gas coming through the vents where ash was coming from on Monday night.”
The eruption disrupted flights over the central North Island, and aerial news footage shows a fine covering of ash downwind from the volcano.
New Zealand’s National Institute of Water and Atmospheric Research (NIWA) website shows the large ash cloud moving east and blowing offshore hours after the eruption.
GNS Science changed the aviation alert for Mt Tongariro to red overnight, meaning an eruption was forecast with significant emission of ash likely.
However, by midday on Tuesday this had been downgraded to orange – which means the volcano is showing heightened unrest.
A statement from the Department of Conservation said the Tongariro Alpine Crossing, Tongariro Northern Circuit and all four huts on the mountain would be closed until further notice.
The Tongariro National Park remained open, including both ski fields on Mt Ruapehu, which were not affected by the eruption.
Police closed some roads in the area as a precaution but these had been reopened.
Locals were being warned to check their water supply for ash contamination.
Mt Tongariro last erupted from November 1896 until October 1897.
Sakurajima volcano continues to be particularly active. The volcano has been having more than usual frequent and stronger explosions during the past months according to Volcano Discovery.
The new powerful explosion occurred on July 24 from the less frequently active Minami-dake crater. There are reports about explosion showered the flanks of the volcano with hundreds of blocks up to considerable distance. An ash column can be seen rising several kilometers. The Tokyo VAAC reported ash plumes up to 3 km ( 10,000 ft).
A recent youtube video shows a powerfull eruption on July 24.
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Sakura-jima, one of Japan’s most active volcanoes, is a post-caldera cone of the Aira caldera at the northern half of Kagoshima Bay. Eruption of the voluminous Ito pyroclastic flow accompanied formation of the 17 x 23 km wide Aira caldera about 22,000 years ago. The smaller Wakamiko caldera was formed during the early Holocene in the NE corner of the Aira caldera, along with several post-caldera cones. The construction of Sakura-jima began about 13,000 years ago on the southern rim of Aira caldera and built an island that was finally joined to the Osumi Peninsula during the major explosive and effusive eruption of 1914. Activity at the Kita-dake summit cone ended about 4850 years ago, after which eruptions took place at Minami-dake. Frequent historical eruptions, recorded since the 8th century, have deposited ash on Kagoshima, one of Kyushu’s largest cities, located across Kagoshima Bay only 8 km from the summit. The largest historical eruption took place during 1471-76. (GVP)
June 20, 2012 – ALASKA – Cleveland Volcano, a 5,676-foot (1,730 meter) peak on an uninhabited island 940 miles southwest of Anchorage, had an explosive eruption at about 2:05 p.m. local time, the Alaska Volcano Observatory reported. A pilot flying in the area estimated that the ash cloud rose to 35,000 feet above sea level, reported the observatory, which is a joint federal-state organization that monitors Alaska’s numerous active volcanoes. However, satellite imagery shows only a weak ash signal, suggesting a thin cloud that dissipated quickly, said Stephanie Prejean, a U.S. Geological Survey seismologist at the observatory in Anchorage. “It was just one explosion, which was very typical of the thing Cleveland has been doing in the last year,” Prejean said. It is possible that the cloud rose to less than 35,000 feet, as the height was just one pilot’s estimate, she said. Pilots have been advised of potential risks from Cleveland, which might explode again, Prejean said. “It could do that any time,” she said. Cleveland has been in an off-and-on eruptive phase since last summer. The volcano has at times oozed lava out of its summit crater, punctuated by occasional small explosions, none of which had created clouds reaching above 20,000 feet until Tuesday. Although Cleveland is one of the most active of Alaska’s scores of volcanoes, there is no on-site seismic monitoring equipment. The Alaska Volcano Observatory must rely on satellite imagery, records of lightning strikes, witness reports and other evidence to determine if an eruption has taken place, Prejean said. That is in contrast to volcanoes closer to Anchorage, where the observatory has set up seismic-monitoring networks that allow scientists to see signals before eruptions happen, she said. Before Tuesday, there had been an apparent slowdown in activity at Cleveland. The Alaska Volcano Observatory three weeks ago lowered the alert level for the volcano to a “yellow” advisory from the more urgent “orange” watch status. “Obviously, it has some oomph left in it,” said Tina Neal, an Alaska Volcano Observatory geologist. Meanwhile, two moderate earthquakes rattled the western Aleutians on Tuesday. The first, registered at magnitude 6.0, hit Tuesday morning about 90 miles northwest of Attu, the westernmost island in Alaska’s Aleutian chain, according to the West Coast and Alaska Tsunami Warning Center. The second, at about noon, measured at magnitude 5.7 and was centered about 65 miles northwest of Attu, the center said. –Reuters
Scientists have uncovered clusters of volcanic vents towering above the seafloor in a region of deep-sea off the coast of Mexico. The so-called “black smoker” vents lie about 7,400 meters (7,900 feet) deep with chimneys reaching 23 meters (75 feet). These magma-powered hydrothermal vents are essentially fissures and cracks in the ocean floor that allow seawater to reach deep, superheated rocks, producing scalding jets of chemical-laden water.
Researchers from Monterey Bay Research Institute (MBARI) discovered these vent fields in late April, at the tail end of a three-month expedition to the Gulf of California that separates mainland Mexico from the Baja Peninsula. The vents lie near the tip of the peninsula along the Alarcón Rise, a seafloor spreading center, where tectonic forces are shoving magma up toward the seafloor along a volcanic steam, birthing fresh ocean crust and pushing two oceanic plates apart.
These maps show the location of the Alarcón Rise, a 50-kilometer-long (31-mile-long) spreading center at the mouth of the Gulf of California. Along ocean spreading ridges like the Alarcón Rise, the seafloor is splitting apart as lava wells up from underneath. (Credit: MBARI)
The team took samples of the animals living near the vents: tube worms that can grow to more than 5 feet (1.5 meters) long, clams up to 10 inches (25 centimeters) across, and other weird creatures that survive on the vents’ volcano-powered chemical soup. The researchers also measured temperatures as high as 300 degrees Celsius (572 degrees Fahrenheit), although there are indications the vent fluids could be hotter than 350 C (660 F).
These photos show a diverse community of organisms that inhabit the newly discovered hydrothermal vent fields. These communities do not depend upon sunlight, or photosynthesis. Instead, bacteria use the chemical-rich vent water as a source of energy, a process known as chemosynthesis. These chemosynthetic bacteria then support dense populations of worms, snails, crabs, clams, and fish. (Credit: MBARI)
Hydrothermal vents transport heat and chemicals into the ocean, providing an energy source that supports a robust community of deep-sea organisms, many of which are not found in any other ocean ecosystem. Knowing where and with what frequency hydrothermal vents occur is valuable information for scientists seeking to deepen our understanding of the biology, chemistry, and geology of the seafloor. MBARI’s seafloor-mapping AUV is helping oceanographers spend less time looking for, and more time looking at, these fascinating deep-sea phenomena.
The new sonar mapping technique offers great promise for tracking down other hydrothermal vents on the seafloor, which increasingly appear to be more plentiful in the world’s oceans than once thought.
Sonar-made map showing the hydrothermal vents, marked by a yellow circle, that can be clearly seen rising above the seafloor. (Credit: MBARI)
Featured image: Hot (550°F), mineral-rich water spews from the seafloor in the hydrothermal vent field discovered on April 28, 2012. The mineral-rich water from this “black smoker” looks like smoke because of the mineral particles that form the hot vent fluid contacts cold seawater. A white bacterial mat is seen on the surface of the chimney below the black smoker. Bacteria use the chemicals in the water as a source of energy. (Credit: MBARI)