Alaid (Russia)

Status Unknown Eruption 2018 2285m
Stratovolcano (Subduction zone / Continental crust (> 25 km))

Alaid

The highest and northernmost volcano of the Kuril Islands, 2285-m-high Alaid is a symmetrical stratovolcano when viewed from the north, but has a 1.5-km-wide summit crater that is breached widely to the south. Alaid is the northernmost of a chain of volcanoes constructed west of the main Kuril archipelago. Numerous pyroclastic cones dot the lower flanks of this basaltic to basaltic-andesite volcano, 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 in the Kuril Islands during historical time.

A dark, ash-rich eruption column rises above Alaid volcano on April 30, 1981, at the peak of an eruption that began on April 27. The eruption plume extended 2000 km to the SE. The highest and northernmost volcano of the Kuril Islands, 2339-m-high Alaid is a symmetrical stratovolcano when viewed from the north, but has a 1.5-km-wide summit crater that is breached to the south. Numerous pyroclastic cones dot the lower flanks of Alaid. Explosive eruptions in 1790 and 1981 were among the largest in the Kuril Islands.

Photo courtesy of Anatoli Khrenov, 1981 (Institute of Volcanology, Petropavlovsk).

Last updated 2019-11-09 05:00:02

Camera (auto update every 1 minute)
Latest activity

VA DISSIPATED ON SATELLITE IMAGERY OBS VA DTG

Tokyo VAAC - 2019-09-11 10:50:00 UTC ()

VA AT 20190911/0130Z FL100 EXTD SE OBS VA DTG

Tokyo VAAC - 2019-09-11 07:06:00 UTC ()