Augustine Volcano

The story

Augustine Volcano (Sugpiaq: Utakineq; Dena'ina: Chu Nula) is a stratovolcano in Alaska consisting of a central complex of summit lava domes and flows surrounded by an apron of pyroclastic, lahar, avalanche, and ash deposits. The volcano forms Augustine Island, colloquially called Mount St. Augustine, in southwestern Cook Inlet in the Kenai Peninsula Borough of southcentral coastal Alaska, about 70 miles (113 km) west of Homer and about 175 miles (282 km) southwest of Anchorage. The volcano is frequently active, with major eruptions recorded in 1883, 1935, 1963–64, 1976, 1986, and 2006. Minor eruptive events were reported in 1812, 1885, 1908, 1944, and 1971. The large eruptions are characterized by an explosive onset followed by the quieter effusion of lava. Augustine Island has a land area of 32.4 square miles (83.9 km2), while West Island, just off Augustine's western shores, has 2 sq mi (5.2 km2). The irregular coastline of Augustine Island is due to the repeated catastrophic collapse of the summit dome, forming debris avalanches down the flanks and into Cook Inlet. The island is mainly made up of past eruption deposits. Scientists have been able to discern that past dome collapse has resulted in large avalanches. Augustine Island has been explored for geothermal power development, and the state of Alaska awarded leases in 2025.

From Wikipedia, CC BY-SA 4.0.

Wikidata Q1193964, referenced by the OpenStreetMap record.

What the record says

Elevation

1260 m

How to reach it

8 named places within 25 miles

Other summits around it

The highest named summits within 25 miles of Augustine Volcano. Elevation from each summit’s own record; bearing measured between the two coordinates.

When to go

Light through the year

Local time (America/Anchorage).

Where this comes from

OpenStreetMap element node/2758083971