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Archive for the ‘Suwanose-jima’ Category

Volcano Watch: 24 February 2009

Posted by feww on February 26, 2009

Volcanic Activity Report: 18 February – 24 February 2009

Source: SI / USGS Weekly Volcanic Activity Report

New activity/unrest:

Volcano of the Week: Sibayak

Country:   Indonesia
Region:    Sumatra (Indonesia)
Volcano Type:    Stratovolcanoes
Last Known Eruption:     1881
Summit Elevation:     2212 m     7,257 feet
Latitude:     3.23°N     3°14’0″N
Longitude:     98.52°E     98°31’0″E

Sibayak volcano in NE Sumatra and its twin volcano Mt. Pinto are constructed within a compound caldera. The slightly higher Mt. Pinto partially overtops the 900-m-wide crater of Sibayak on the north. The summit contains a lava dome and an area of hydrothermal alteration visible in this photo. An ash eruption from Sibayak was recorded in 1881, and area residents note legends of eruptions. Photo by Tom Casadevall, 1987 (U.S. Geological Survey). Caption: GVP

Sibayak crater lake.
Credit: browngroove via flickr. See source for copyright information.

Ongoing Activity:

Posted in Barren Island, Karymsky, Kīlauea, Popocatépetl, Suwanose-jima | Tagged: , , , , | Leave a Comment »

Volcano Watch No. 39

Posted by feww on October 2, 2008

24 – 30 September 2008

New Activity/Unrest:

Garbuna Group, New Britain

RVO reported ash emissions from Garbuna on 23 September through 1 October. Ash plumes rose to an altitude of about 1.6 km a.s.l. and drifted NW.

Piton de la Fournaise, Reunion Island

OVPDLF reported  lava flows from Piton de la Fournaise 24-30 September ponding at the bottom of Dolomieu crater. Air photos [25 September] showed lava flow was about 180 m long by 100 m wide and 30 m deep. The erupted volume was estimated at 300,000 cubic meters.

Sangay, Ecuador

Having analyzed satellite imagery, information from the Guayaquil MWO, and pilot reports, Washington VAAC reported a minor ash plume rising from Sangay on 24 September.

Garbuna Volcano Complex

The Garbuna volcano group at the southern end of the Willaumez Peninsula rises to the WNW across Stetin Bay. The complex consists of three volcanic peaks, Krummel, Garbuna, and Welcker, along a N-S line. The most prominent peaks, Welcker (right) and Krummel (left), anchor the northern and southern sides of the complex, respectively. The lower peaks of the centrally located Garbuna volcano contain a large vegetation-free area that is probably the most extensive thermal field in Papua New Guinea. Photo by Elliot Endo, 2002 (U.S. Geological Survey). Source of image and caption: GVP.

Country: Papua New Guinea
Subregion Name: New Britain
Volcano Type: Stratovolcanoes
Last Known Eruption: 2008

Summit Elevation: 564 m
Latitude:     5.45°S     5°27’0″S
150.03°E     150°2’0″E

Ongoing Activity:

This Weekly Volcanic Activity Report is a cooperative project between the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.

Posted in Akan volcano, Dukono, Santa María Volcano, Suwanose-jima, Turrialba | Tagged: , , , , | Leave a Comment »