Alaid volcan éruptions
stratovolcan 2339 m / 7,674 ft
Atlasov Island, Northern Kuriles, 50.86°N / 155.55°E
Liste des éruptions: 1997, 1996, 1986, 1982, 1981, 1972, 1933-34, 1894, 1860, 1854, 1790-93
Seismic tremor began at Alaid volcano on 31 October and continued until November. The tremor was believed to be caused by strong winds, not caused by volcanic activity. (Source: GVP monthly roports)
In August 1997, a thermal hotspot was visible on satellite images of the volcano indicating eruptive activity. Ashfall occurred on SW Kamchatka.
Seismic activity increased in December 1996. Satellite images showed a plume reaching a height of 6 km above the volcano. A large snow storm prevented any visual observations. (GVP monthly reports)
1986 collapse of cone in summit crater
Aerial observations on 25 May 1986 revealed that the summit crater's 1981 cone (250 m high and 600 m across at its base) had been almost entirely destroyed recently. At its place there were 2 collapse craters, the larger of which measured 300 m across and ca. 100 m deep.
(Source: GVP monthly reports
1981 eruption of Alaid volcano
The eruption of Alaid volcano in 1981 ranks as one of the largest in the Kurile Islands in historical times.
1972 lateral and submarine eruption
A lateral, partly submarine eruption began at Alaid volcano in June 1972. An eruptive fissure extended from the NW base of the volcano to the sea. The water-magma interaction produced powerful explosions and ash plumes 8 km high.
Earlier historic eruptions from Alaid volcano1933-1934 eruptions
: the first observed flank eruption1894
: summit eruption1860
: eruption from the summit crater1854
: strong explosive eruption from the summit crater1793
: explosive eruption from the summit crater