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SI/USGS Weekly Volcanic Activity Report, 27 October – 2 November 2010 4 November 2010

Posted by admin in activity reports, Chile, Colima, Dukono, Ecuador, eruptions, Eyjafjöll, Fuego, Guatemala, Hawaii, Iceland, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Kliuchevskoi, Krakatau, Manam, Merapi, Pacific, Pagan, Papua New Guinea, Piton de la Fournaise, Planchón-Peteroa, Russia, Sakura-jima, Sangay, Santa María, Shiveluch, United States, Villarrica, Weekly Volcanic Activity Reports.
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The Weekly Volcanic Activity Report for 27 October to 2 November 2010 is compiled by Sally Kuhn Sennert and published by the Global Volcanism Program. Some selected highlights:

  • Kliuchevskoi: ash plumes to 8-9 km altitude causing flight diversions
  • Merapi: eruption continues with pyroclastic flows, plumes to more than 6 km altitude, ashfall
  • Piton de la Fournaise: eruption continues, an active lava lake observed
  • Eyjafjallajökull: the 2010 eruption is officially over, says scientist

SI/USGS Weekly Volcanic Activity Report 27 October - 2 November 2010

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The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 27 October – 2 November 2010 is now available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.

New activity/unrest: Colima (Mexico), Kliuchevskoi (Russia), Krakatau (Indonesia), Merapi (Indonesia), Piton de la Fournaise (Réunion Island), Planchón-Peteroa (Chile), Shiveluch (Russia).

Ongoing activity: Dukono (Indonesia), Eyjafjallajökull (Iceland), Fuego (Guatemala), Karymsky (Russia), Kilauea (Hawaii, USA), Manam (Papua New Guinea), Pagan (Mariana Islands), Sakura-jima (Japan), Sangay (Ecuador), Santa María (Guatemala), Villarrica (Chile).

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Random rumblings: hydrothermal vents re-colonized from afar, Yellowstone swarm, Krakatoa, Mauna Kea testbed, and MSH spiders to Chaitén 2 March 2010

Posted by admin in Chaitén, Chile, current research, Hawaii, Indonesia, Krakatau, United States.
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Hydrothermal vents sometimes colonized from afar (Science News) – ‘Field studies at a hydrothermal vent system where all life was snuffed out by a massive undersea volcanic eruption reveal that these habitats can be repopulated in a matter of months by larvae from distant vents. … Water samples taken near the vents in May 2006 contained the larvae of Ctenopelta porifera, a rock-clinging gastropod called a limpet. By July, these fast-growing creatures had colonized the rocks around the eruption-sterilized vents; by October, they were mature and reproducing. … the nearest hydrothermal system known to host that species is located more than 300 kilometers away.’

Recent Yellowstone earthquake swarm was the second-largest ever (Denver Post) – ‘The Yellowstone earthquake swarm that began on Jan. 17 and ended on Feb. 11 was the second-largest earthquake swarm ever at Yellowstone National Park, according to scientists at the University of Utah. … Not only was the swarm the second-largest ever recorded at Yellowstone but it was longer in time and included more earthquakes than last year’s swarm beneath Yellowstone Lake, which occurred in December 2008 and January 2009, according to the scientists.’

Krakatoa’s child smokes with magic fire in belly (The Age) – ‘As the boat approached Anak Krakatau, the atmosphere was eerie. The smoke of the seasonal forest fires drifting from Sumatra made visibility poor and, before we even sighted the volcano, we heard it: a deep, otherworldly rumble. Then, out of the haze, materialised the cone of Anak Krakatau. Within minutes, thick grey ash billowed out of its caldera into the sky.’

Into the mouth of a volcano (Astrobiology Magazine) – ‘Dr. Inge Ten Kate, a University of Maryland Baltimore County research assistant, led an expedition into a cinder cone atop Mauna Kea, Hawaii, to test the prototype for an instrument that will be a miniature laboratory to discover the composition of rocks and atmospheres on moons, asteroids, and planets across the solar system. … Why a volcano? “The terrain and composition are similar to what we expect to find on the Moon, asteroids, and Mars,” says Ten Kate. “Also, there will be outgassing from the volcano, so we can test our ability to measure trace gases in atmospheres. Finally, the differences among various areas on the volcano’s cinder cone will be subtle, so it’s a good test of our sensitivity and our ability to distinguish different regions.”‘

Mount St. Helens ‘spiders’ will get tryout on Chilean volcano (The Oregonian) – Geological ‘spiders’ packed with instruments to monitor the heaves, sighs and belches of Mount St. Helens, are expected to migrate south this month. Two of the contraptions are headed to Chaiten, a volcano in Chile that began erupting in 2008 after about 9,000 years of dormancy. … The machines helped give the USGS sufficient information to declare in January 2008 that Mount St. Helens recent eruptive phase was over. That kind of certainty is needed at Chaiten, said John Ewert, a volcanologist in the Volcano Disaster Assistance Program. “It’s always hard enough to know when they’ll start erupting,” said Ewert, part of the team that visited the Chilean volcano in January. “It’s even harder to tell when they’ll stop.”‘

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SI/USGS Weekly Volcanic Activity Report 28 October – 3 November 2009 5 November 2009

Posted by admin in activity reports, Barren Island, Caribbean, Chaitén, Chile, Colombia, Dukono, Ebeko, eruptions, Galeras, Hawaii, India, Indian Ocean, Indonesia, Japan, Kamchatka, Karangetang, Karymsky, Kilauea, Kliuchevskoi, Krakatau, Manam, Mexico, Nevado del Huila, Papua New Guinea, Popocatépetl, Rabaul, Sakura-jima, Shiveluch, Soufrière Hills, Suwanose-jima, United States, Weekly Volcanic Activity Reports.
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SI/USGS Weekly Volcanic Activity Report 28 October - 3 November 2009

Click on the map for a larger version (1280 x 898 pixels).

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 28 October – 3 November 2009 is available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.

New activity/unrest: Ebeko (Russia), Galeras (Colombia), Karangetang [Api Siau] (Indonesia), Manam (Papua New Guinea), Nevado del Huila (Colombia), Soufrière Hills (Montserrat).

Ongoing activity: Barren Island (India), Chaitén (Chile), Dukono (Indonesia), Karymsky (Russia), Kilauea (Hawaii, USA), Kliuchevskoi (Russia), Krakatau (Indonesia), Popocatépetl (Mexico), Rabaul (Papua New Guinea), Sakura-jima (Japan), Shiveluch (Russia), Suwanose-jima (Japan).

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Krakatau, 27 August 1883 27 August 2009

Posted by admin in anniversaries, eruptions, Indonesia, Krakatau, volcanological works.
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'View of Krakatoa during the earlier stage of the eruption. From a photograph taken on Sunday the 27th of May, 1883' - plate I from The Eruption of Krakatoa and Subsequent Phenomena (London, 1888)

It was 126 years ago today, on 27 August 1883, that the most recent large-scale eruption of Krakatau (or Krakatoa, if you prefer) reached its final cataclysmic stage. An appropriate day, then, to draw the attention of interested readers to the fact that possibly the most detailed contemporary scientific study of the eruption, the Royal Society’s 500-page report on The Eruption of Krakatoa and Subsequent Phenomena (1888), is freely available to download from the Internet Archive.

Fgures 2 and 3 from The Eruption of Krakatoa and Subsequent Phenomena (London, 1888)

The book has been fully digitized by Google, but it is a curious fact that Google chooses not to make the full text of this out-of-copyright publication available via Google Books. It is, however, freely available to read and download (along with many other texts that Google has digitized but has seemingly decided to keep to itself) through its inclusion in the Internet Archive.

The Eruption of Krakatoa and Subsequent Phenomena can be accessed via this page at the Internet Archive. The PDF of the entire book (27.2 MB) cannot be found via the ‘Google.com’ link given on that page, but can be downloaded through this direct link.

The Volcanism Blog

SI/USGS Weekly Volcanic Activity Report, 1-7 July 2009 13 July 2009

Posted by admin in activity reports, Africa, Batu Tara, Chaitén, Chile, Dukono, Ecuador, El Salvador, eruptions, Ethiopia, Hawaii, Indonesia, Japan, Kamchatka, Kilauea, Krakatau, Manda Hararo, Mayon, Papua New Guinea, Peru, Philippines, Rabaul, Russia, Sakura-jima, San Miguel, Santa María, Sarychev Peak, Shiveluch, Suwanose-jima, Tungurahua, Ubinas, United States, Weekly Volcanic Activity Reports.
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SI/USGS Weekly Volcanic Activity Report 1-7 July 2009

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 1-7 July 2009 is available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.

New activity: Manda Hararo (Ethiopia), Mayon (Philippines), San Miguel (El Salvador), Sarychev Peak (Russia).

Ongoing Activity: Batu Tara (Indonesia), Chaitén (Chile), Dukono (Indonesia), Kilauea (Hawaii, USA), Krakatau (Indonesia), Rabaul (Papua New Guinea), Sakura-jima (Japan), Santa María (Guatemala), Shiveluch (Russia), Suwanose-jima (Japan), Tungurahua (Ecuador), Ubinas (Peru).

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Increase in activity at Anak Krakatau reported 19 June 2009

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‘Mt Anak Krakatau’s eruptions record tremendous increase’ is the headline at Indonesia’s Antara news agency, on a lengthy story reporting a rise in the numbers of earthquakes and ‘small eruptions’ at the volcano, which is in the Sunda Strait between the islands of Sumatra and Java:

At least 828 small eruptions were recorded to have happened on the volcano with 63 volcanic quakes, 434 tremors and 366 times of emission in the past six days, said Anto Prambudi, head of Mt Anak Krakatau Monitoring Post in Pasauran village, Serang district, Banten province, on Wednesday. According to him, in the past five days the volcanic quake of Mt Anak Krakatau showed a rise in its activity. In fact, the frequency of the quake and small eruptions took place in every three minutes interval.

People living near Anak Krakatau, which is constructing itself over the remains of the Krakatau volcano destroyed in the famous eruption of 1883, have been reporting for some time that activity levels have been rising, and on 6 May this year the Indonesian volcanological authorities raised the alert level to the second-highest level of Orange (Siaga), where it remains. The Antara report describes frequent earthquakes, ‘white smoke’ rising to 800 metres above the crater, hazardous gas emissions, and ‘glowing lava like gravel’ with a temperature of 600°C:

Officials at the Anak Krakatau Monitong Post in Pasauran village, Cinangka sub district, Serang district, said the volcano’s activity was on Friday marked by 182 eruptions coupled with 11 volcanic quakes, eight deep volcanic tremors, 54 shallow volcanic shocks, 44 tremors, and it also spewed smoke 29 times. But none of the phenomena posed a direct threat to human life.

There are reports of some local inhabitants leaving the area with their families in alarm at the volcano’s rise in activity. At the moment the authorities have imposed a three-kilometre radius exclusion zone, but no evacuations have been officially ordered.

For all our Indonesia coverage: Indonesia « The Volcanism Blog.

News
Mt Anak Krakatau’s eruptions record tremendous increase – Antara News, 18 June 2009

Information
Global Volcanism Program: Krakatau – summary information for Krakatau (0602-00=)
Pusat Vulkanologi & Mitigasi Bencana Geologi – News and information portal for the Directorate of Volcanology and Geological Hazard Mitigation, Indonesia

The Volcanism Blog

Anak Krakatau alert level increased 7 May 2009

Posted by admin in activity reports, eruptions, Indonesia, Krakatau.
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Quick update … it seems recent reports from local inhabitants of increased activity at Krakatau may have been correct – the alert level for the volcano has just been raised by the Indonesian authorities from Yellow (Waspada) to Orange (Siaga). Dr Klemetti has information and links at Eruptions: Alert level raised at Anak Krakatau.

For all our Indonesia coverage: Indonesia « The Volcanism Blog.

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SI/USGS Weekly Volcanic Activity Report, 29 April 2009 – 5 May 2009 7 May 2009

Posted by admin in activity reports, Alaska, Asama, Bagana, Batu Tara, Chaitén, Chile, Cleveland, Colombia, Dukono, Ebeko, Ecuador, eruptions, Fernandina, Galapagos, Galeras, Hawaii, Indonesia, Japan, Kamchatka, Karymsky, Kilauea, Krakatau, Mexico, Papua New Guinea, Popocatépetl, Rabaul, Redoubt, Reventador, Rinjani, Russia, Sakura-jima, Shishaldin, Slamet, Suwanose-jima, Tungurahua, United States, Weekly Volcanic Activity Reports.
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SI/USGS Weekly Volcanic Activity Report 29 April 2009 - 5 May 2009

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report covering 29 April 2009 to 5 May 2009 is available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.

New activity: Bagana (Papua New Guinea), Fernandina (Galapagos Islands), Galeras (Colombia), Krakatau (Indonesia), Reventador (Ecuador), Rinjani (Lombok Island, Indonesia), Shiveluch (Kamchatka, Russia), Slamet (Java, Indonesia).

Ongoing activity: Asama (Japan), Batu Tara (Komba Island, Indonesia), Chaitén (Chile), Cleveland (Alaska, USA), Dukono (Halmahera, Indonesia), Ebeko (Paramushir Island, Russia), Karymsky (Kamchatka, Russia), Kilauea (Hawaii, USA), Popocatépetl (Mexico), Rabaul (Papua New Guinea), Redoubt (Alaska, USA), Sakura-jima (Japan), Suwanose-jima (Japan), Tungurahua (Ecuador).

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SI/USGS Weekly Volcanic Activity Report, 22 April 2009 – 28 April 2009 30 April 2009

Posted by admin in activity reports, Alaska, Bagana, Barren Island, Batu Tara, Caribbean, Chaitén, Chile, Colombia, Dukono, Ebeko, Ecuador, eruptions, Galeras, Guatemala, Hawaii, Indonesia, Japan, Kamchatka, Karymsky, Kerinci, Kilauea, Koryaksky, Krakatau, Llaima, Pacaya, Papua New Guinea, Rabaul, Redoubt, Reventador, Russia, Sakura-jima, Santa María, Shiveluch, Slamet, Soufrière Hills, Suwanose-jima, Tungurahua, United States, Weekly Volcanic Activity Reports.
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SI/USGS Weekly Volcanic Activity Report 22 April 2009 - 28 April 2009

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report covering 22 April 2009 to 28 April 2009 is available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.

New activity: Bagana (Papua New Guinea), Ebeko (Paramushir Island, Russia), Galeras (Colombia), Pagan (Mariana Islands), Reventador (Ecuador), Shiveluch (Kamchatka, Russia), Slamet (Java, Indonesia).

Ongoing activity: Barren Island (Andaman Islands), Batu Tara (Komba Island, Indonesia), Chaitén (Chile), Dukono (Halmahera, Indonesia), Fuego (Guatemala), Karymsky (Kamchatka, Russia), Kerinci (Sumatra, Indonesia), Kilauea (Hawaii, USA), Koryaksky (Kamchatka, Russia), Krakatau (Indonesia), Llaima (Chile), Pacaya (Guatemala), Rabaul (Papua New Guinea), Redoubt (Alaska, USA), Sakura-jima (Japan), Santa María (Guatemala), Soufrière Hills (Montserrat), Suwanose-jima (Japan), Tungurahua (Ecuador).

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Volcanic activity in Indonesia: Kerinci and Krakatau 21 April 2009

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News of volcanoes stirring in Indonesia, one of the most volcanically active parts of the globe.

Mount Kerinci, Sumatra, Indonesia (picture by Tom Casadevall, USGS, 1987)
Mount Kerinci, Sumatra, Indonesia. Picture by Tom Casadevall, USGS, 1987.

Mount Kerinci on Sumatra, the highest volcano in Indonesia (3800 metres a.s.l.) and one of the most active, is reported to be producing small explosions, ‘discharges of dust’ and ‘repeated tremors’ and threatening the populated area at the foot of the mountain. The Kerinci Observation Post has warned local people to wear masks when going out of doors. The Indonesian Volcanological Authority alert level for Kerinci is thus far still at the second-lowest level of Yellow (Waspada).

Anak Krakatau, the young volcano emerging in the Sunda Strait on the site of the famous 1883 ‘Krakatoa’ eruption, is apparently causing alarm among local people, some of whom have been leaving their homes in the belief that a major eruption is imminent. The volcano has been producing explosions and eruptions of ash, but the volcanological authorities say that the activity is not unusual and people should not panic. The alert level for Anak Krakatau remains unchanged at Yellow (Waspada). There seems to be a mismatch between what the scientists say Anak Krakatau is up to and what local people perceive: Dr Erik Klemetti has more on this at Eruptions.

For all our Indonesia coverage: Indonesia « The Volcanism Blog.

News
Sumatran volcano shows intensified volcanic activityThe Jakarta Post, 21 April 2009
Lampung residents told not to panic as Mt. Anak Krakatau spews ashThe Jakarta Post, 21 April 2009

Information
Global Volcanism Program: Kerinci – summary information for Kerinci (0601-17=)
Global Volcanism Program: Krakatau – summary information for Krakatau (0602-00=)

The Volcanism Blog