Chiginagak Volcano
Updated: Apr 19, 2024 03:00 GMT -
Stratovolcano 2221 m / 7,287 ft
United States, Alaska Peninsula, 57.14°N / -156.99°W
Current status: normal or dormant (1 out of 5)
United States, Alaska Peninsula, 57.14°N / -156.99°W
Current status: normal or dormant (1 out of 5)
Last update: 13 Dec 2021 (Smithsonian / USGS Weekly Volcanic Activity Report)
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Chiginagak volcano eruptions: 1998
Latest nearby earthquakes
| Time | Mag. / Depth | Distance / Location | |||
| Apr 8, 09:11 am (Anchorage) | 2.4 0 km | 24 km (15 mi) to the W |  50 km S of Ugashik, Alaska | Info | |
Background
The symmetrical, calc-alkaline Chiginagak stratovolcano located about 15 km NW of Chiginagak Bay contains a small summit crater, which is breached to the south, and one or more summit lava domes. Satellitic lava domes occur high on the NW and SE flanks of the glacier-mantled volcano. An unglaciated lava flow and an overlying pyroclastic-flow deposit extending east from the summit are the most recent products of Chiginagak. They most likely originated from a lava dome at 1687 m on the SE flank, 1 km from the summit of the volcano, which has variably been estimated to be from 2075 to 2221 m high. Brief ash eruptions were reported in July 1971 and August 1998. Fumarolic activity occurs at 1600 m elevation on the NE flank of the volcano, and two areas of hot-spring travertine deposition are located at the NW base of the volcano near Volcano Creek.---
Smithsonian / GVP volcano information
Latest satellite images
