Report on Alaid (Russia) — March 1982
Scientific Event Alert Network Bulletin, vol. 7, no. 3 (March 1982)
Managing Editor: Lindsay McClelland.
Alaid (Russia) Plume on satellite imagery
Please cite this report as:
Global Volcanism Program, 1982. Report on Alaid (Russia) (McClelland, L., ed.). Scientific Event Alert Network Bulletin, 7:3. Smithsonian Institution. https://doi.org/10.5479/si.GVP.SEAN198203-290390
50.861°N, 155.565°E; summit elev. 2285 m
All times are local (unless otherwise noted)
Imagery from the GMS satellite revealed a narrow, linear eruption plume emerging from Alaid at 1100 on 29 March. The plume extended roughly 100 km to the ESE and was estimated to be roughly 2 hours old. Images returned 3 hours earlier and later showed no evidence of activity.
Geological Summary. The highest and northernmost volcano of the Kuril Islands, Alaid is a symmetrical stratovolcano when viewed from the north, but has a 1.5-km-wide summit crater that is breached open to the south. This basaltic to basaltic-andesite volcano is the northernmost of a chain constructed west of the main Kuril archipelago. Numerous pyroclastic cones are present the lower flanks, particularly on the NW and SE sides, including an offshore cone formed during the 1933-34 eruption. Strong explosive eruptions have occurred from the summit crater beginning in the 18th century. Reports of eruptions in 1770, 1789, 1821, 1829, 1843, 1848, and 1858 were considered incorrect by Gorshkov (1970). Explosive eruptions in 1790 and 1981 were among the largest reported in the Kuril Islands.
Information Contacts: M. Matson, NOAA/NESS.