Monthly Archives: February 2008

Mount St. Helens, Washington, USA

Data from deformation-monitoring instruments indicated that during13-19 February lava-dome growth at Mount St. Helens continued. Seismicity persisted at low levels, punctuated by M 1.5-2.5, and occasionally larger, earthquakes. Clouds and snow cover frequently inhibited visual observations. Source: Cascades Volcano Observatory … Continue reading

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Soufriére Hills, Montserrat, West Indies

MVO reported that that during 13-19 February the lava dome at Soufrière Hills changed very little, based on visual observations. Seismic activity was very low and low-level rockfall activity continued. Fumarolic activity on the N and E flanks continued. Active … Continue reading

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Shiveluch, Russia

KVERT reported that seismic activity at Shiveluch was slightly above background levels during 8-11 February and at background levels on 12 and 13 February. Based on seismic interpretation, ash plumes possibly rose to an altitude of 3.3 km (10,800 ft) … Continue reading

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Santa María, Guatemala

INSIVUMEH reported on 6 February that avalanches from lava flows on the W flank of Santa María’s Santiaguito lava dome complex continued. Explosions produced ash-and-steam plumes that rose to an altitude of 3.9 km (12,800 ft) a.s.l. On 8 February, … Continue reading

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Rabaul, Papua New Guinea

RVO reported that ash plumes from Rabaul caldera’s Tavurvur cone rose to an altitude of 2.2 km (7,200 ft) a.s.l. and drifted NW, N, E, SE, and S during 12-15 and 17-20 February. Ashfall was reported in Barovon, Lalakua, Raluana, … Continue reading

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Popocatépetl, Mexico

CENAPRED reported that emissions of steam and gas from Popocatépetl were visible during 12-19 February. The plumes occasionally contained slight amounts of ash. An explosion on 12 February resulted in an ash plume that rose to an altitude of 7 … Continue reading

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Pacaya, Guatemala

INSIVUMEH reported that during 6-19 February white and blue fumarolic plumes from Pacaya’s MacKenney cone rose to altitudes of 2.6-2.7 km (8,500-8,900 ft) a.s.l. and drifted S, SW, and W. About two to five lava flows per day traveled about … Continue reading

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