Report on Alaid (Russia) — September 1997
Bulletin of the Global Volcanism Network, vol. 22, no. 9 (September 1997)
Managing Editor: Richard Wunderman.
Alaid (Russia) Hot spot seen on satellite imagery; ashfall on Kamchatka
Please cite this report as:
Global Volcanism Program, 1997. Report on Alaid (Russia) (Wunderman, R., ed.). Bulletin of the Global Volcanism Network, 22:9. Smithsonian Institution. https://doi.org/10.5479/si.GVP.BGVN199709-290390
50.861°N, 155.565°E; summit elev. 2285 m
All times are local (unless otherwise noted)
On 23 August a possible hot spot at Alaid was reported to be visible on U.S. satellite imagery. The Russian Coast Guard informed the Kamchatka Volcanic Eruptions Response Team (KVERT) that ash had fallen on the SW part of the Kamchatka Peninsula. No ashfalls or other signs of eruptive activity were reported at Severo-Kurilsk (Paramushir Island), 25 km E of the volcano, or from a fishing vessel 10 km from the volcano.
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: Vladimir Kirianov, Kamchatka Volcanic Eruptions Response Team (KVERT), Institute of Volcanic Geology and Geochemistry, Piip Ave. 9, Petropavlovsk-Kamchatsky, 683006, Russia; Tom Miller, Alaska Volcano Observatory (AVO), a cooperative program of a) U.S. Geological Survey, 4200 University Drive, Anchorage, AK 99508-4667, USA (URL: http://www.avo.alaska.edu/), b) Geophysical Institute, University of Alaska, PO Box 757320, Fairbanks, AK 99775-7320, USA, and c) Alaska Division of Geological & Geophysical Surveys, 794 University Ave., Suite 200, Fairbanks, AK 99709, USA.