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Veniaminof, Alaska Peninsula, USA

cosmicbob — Fri, 09 May 2008 03:08:30 +0000

AVO reported on 3 May that the Volcanic Alert Level for Veniaminof was lowered to Normal and the Aviation Color Code was lowered to Green due to the absence of ash emissions and elevated surface temperatures. Seismicity was still above past background levels, but the rate and intensity had declined over the previous several weeks.

Source: Alaska Volcano Observatory (AVO) - “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”

Veniaminof, Alaska Peninsula, USA

cosmicbob — Thu, 06 Mar 2008 01:30:55 +0000

AVO reported elevated seismic activity from Veniaminof during 27 February-4 March. Web camera views showed steaming from the cone and occasional small ash bursts that rose to 200 m above the crater on 27 February. During 28 February-3 March views were obscured by cloud cover; low-level steaming was seen on 29 February during a break in the weather.

Source: Alaska Volcano Observatory (AVO) - “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”

Veniaminof, Alaska Peninsula, USA

cosmicbob — Thu, 06 Mar 2008 01:13:25 +0000

AVO reported that on 22 February several minor ash bursts from Veniaminof were recorded by the seismic network and observed on web camera footage. The bursts rose to an altitude of below 2.7 km (9,000 ft) a.s.l. but fallout was confined to the crater. Sporadic increases in seismic activity were noted since 11 February, including tremor episodes that lasted 1-2 minutes and occurred several times per hour. The Aviation color code was raised to Yellow and the Alert Level was raised to Advisory. Steam plumes emitted from the intra-caldera cinder cone were seen on video footage during 23-25 February and seismic levels were elevated during 23-26 February.

Source: Alaska Volcano Observatory (AVO) - “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”