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A volcanic miscellany: Ibu, Toba, Kasatochi, Cotopaxi 21 August 2009

Posted by admin in Alaska, Ecuador, Ibu, Indonesia, Kasatochi, Toba, United States, volcano tourism.
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Catching up with some volcanic bits and bobs that have been hanging around on my desktop/in my inbox/on little pieces of paper in my pocket for the last couple of weeks:

Heightened alert at Ibu. The alert level for the Indonesian volcano Ibu on the island of Halmahera was raised to level 3 (orange/siaga) on 5 August. The last increase in alert level, from 1 (green) to 2 (yellow/waspada), was less than a month earlier, on 15 July. Eruptions of incandescent material accompanied by elevated seismicity occurred with increasing frequency at the end of July. Meanwhile, the lava dome continues to grow. Some very nice pictures of the dome from August 2007 can be found in this Flickr collection (thanks to Volcanism Blog reader Bruce S. for letting me know about this).

Weather wonders and supervolcanoes. Randy Cerveny, geographical sciences professor at Arizona State University, has a new book out called Weather’s Greatest Mysteries Solved! (the exclamation mark is, apparently, part of the title) which looks at the role of the weather in Earth’s prehistory and history, from the extinction of the dinosaurs to the Dust Bowl of the 1930s via the end of the Mayan civilization and the parting of the Red Sea. One chapter is devoted to the Toba eruption of about 74000 years ago, which may (or may not) have brought about the near-extinction of humanity. This topic naturally leads to speculation about possible future ‘supervolcano’ eruptions and the potential threat posed by Yellowstone: ‘It’s overdue’, says Prof. Cerveny, but ‘I don’t think it’s a run into the night screaming kind of thing yet, but if it were to happen civilization as we know it would probably break down’. He also has a nice message of humility for humanity, pointing out that however much ‘We like to think we are masters of our fate … the thing about climate is that there are simply a lot of things we can’t control or even begin to control or totally understand’.

‘Our island blew up’. The August 2008 eruption of Kasatochi volcano in the Aleutians brought an abrupt end to scientific fieldwork being carried out there by two U.S. Fish & Wildlife Service biologists: ‘our island blew up’, is the deadpan observation in their research report. Today Kasatochi, formerly green here and there, is black and barren, and about 32 percent larger than it was before the eruption. A scientific team is revisiting the island to assess the aftermath of the event, and will be accompanied by a reporter from the Alaska Daily News who will file regular reports on their researches.

Music and dance at Cotopaxi. It’s 34 years since the Cotopaxi National Park was created around Cotopaxi volcano in Ecuador, and local communities have been celebrating the anniversary with music and dance, reports El Comercio. The Ecuadorian Minister for the Environment has been at the celebrations, and the locals have taken the opportunity to lobby her for more support and funding for the park and the people who live in and around it. The Parque Nacional Cotopaxi is one of Latin America’s top tourist attractions, receiving more than 100,000 visitors per year.

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SI/USGS Weekly Volcanic Activity Report, 5-11 August 2009 14 August 2009

Posted by admin in activity reports, Bagana, Batu Tara, Dukono, eruptions, Hawaii, Ibu, Indonesia, Japan, Kamchatka, Kilauea, Mayon, Papua New Guinea, Philippines, Rabaul, Russia, Sakura-jima, Shiveluch, Slamet, Suwanose-jima, United States, Weekly Volcanic Activity Reports.
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SI/USGS Weekly Volcanic Activity Report 5-11 August 2009

The Smithsonian Institution/United States Geological Survey Weekly Volcanic Activity Report for 5-11 August 2009 is available on the Global Volcanism Program website. The following is a summary and not a substitute for the full report.

New activity: Ibu (Indonesia), Mayon (Philippines).

Ongoing Activity: Bagana (Papua New Guinea), Batu Tara (Indonesia), Dukono (Indonesia), Kilauea (Hawaii, USA), Rabaul (Papua New Guinea), Sakura-jima (Japan), Shiveluch (Russia), Slamet (Indonesia), Suwanose-jima (Japan).

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Indonesia: alert level raised for Ibu and Anak Krakatau 22 April 2008

Posted by admin in activity reports, Ibu, Indonesia, Krakatau.
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The Indonesian volcanological authorities have raised the alert levels for Ibu and Anak Krakatau to level III, orange, following recent ash eruptions and an increases in seismic activity at both volcanoes. This is the second-highest alert level. No evacuations have been ordered but people have been warned not to approach either volcano closer than 2 kilometres, and the local inhabitants around Ibu have been advised to wear masks to protect themselves from ash.

Indonesia now has three volcanoes on level III orange alert: Egon, Ibu, and Anak Krakatau. A guide to the Indonesian volcano alert system can be found here.

For all our coverage of Indonesian volcanism: Indonesia << The Volcanism Blog.

Information
Smithsonian Institution Global Volcanism Program – summary information for Ibu (0608-03=)
Smithsonian Institution Global Volcanism Program – summary information for Krakatau (0602-00=)
Direktorat Vulkanologi Indonesia – Directorate of Volcanology and Geological Hazard Mitigation, Indonesia
Pusat Vulkanologi & Mitigasi Bencana Geologi – News and information portal for the Directorate of Volcanology and Geological Hazard Mitigation, Indonesia

News
Indonesia’s Krakatau, Ibu volcanoes put on second-highest alert – Bloomberg, 22 April 2008
Alert levels raised for Indonesia’s Krakatau, Mount Ibu volcanoes – Earth Times, 22 April 2008
Alert for Indonesia’s Krakatau, Mount Ibu volcanoesBangkok Post, 22 April 2008
Indonesia raises alert for two volcanoes – Reuters, 22 April 2008

The Volcanism Blog

Ibu, Indonesia: 500-metre plume reported 11 April 2008

Posted by admin in activity reports, eruptions, Ibu, Indonesia.
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The Malaysian news agency BERNAMA reports today that Ibu volcano in Halmahera, Indonesia, has ‘spewed thick smoke [sic] up to 500 metres into the sky in the last few days’. Quoting Indonesia’s Antara news agency, BERNAMA reports that an average of 40 earthquakes a day have been shaking the volcano, but that the current activity is not regarded as dangerous and no evacuations have been ordered.

Information
Smithsonian Institution Global Volcanism Program – summary information for Ibu (0608-03=)
Direktorat Vulkanologi Indonesia – Directorate of Volcanology and Geological Hazard Mitigation, Indonesia
Pusat Vulkanologi & Mitigasi Bencana Geologi – News and information portal for the Directorate of Volcanology and Geological Hazard Mitigation, Indonesia

News
Mount Ibu spews thick smoke – BERNAMA, 11 April 2008

The Volcanism Blog

Activity at Ibu, Indonesia 8 April 2008

Posted by admin in activity reports, Ibu, Indonesia.
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From Activolcans comes a report of eruptive activity at Ibu volcano, Halmahera, Indonesia. From mid-March volcanologists reported visual observations of a small gas plume reaching an altitude of approximately 70 metres above the crater. Towards the end of March the plume became larger, reaching 300 metres in altitude on 31 March. On 4 and 5 April there were explosions at the summit crater, producing ash plumes of several hundred metres in height.

Access to the summit of Ibu is currently forbidden, and the alert status for the volcano is yellow. The Indonesian Directorate of Volcanology has indicated that the level may be raised to red if the current level of activity increases.

Information
Smithsonian Institution Global Volcanism Program – summary information for Ibu (0608-03=)
Direktorat Vulkanologi Indonesia – Directorate of Volcanology and Geological Hazard Mitigation, Indonesia

News
Volcan: Ibu, Indonésie – Activolcans activity report, 7 April 2008

The Volcanism Blog