Augustine Volcano, Stratovolcano in Cook Inlet, Alaska.
The summit complex includes multiple lava domes and flows surrounded by deposits of volcanic materials extending to the coastline of Augustine Island.
The volcano produced a destructive tsunami in Cook Inlet during its 1883 eruption, following a major collapse of the volcanic edifice.
The Native Sugpiaq people named the volcano Utakineq while the Dena'ina community refers to it as Chu Nula.
The Alaska Volcano Observatory maintains a network of seismic instruments on Augustine Island to detect early signs of volcanic activity.
The formation contains 11 distinct debris avalanche deposits that reached the sea within the last 2000 years, creating the current irregular coastline.
Location: Alaska
Elevation above the sea: 1,260 m
GPS coordinates: 59.36197,-153.42978
Latest update: May 27, 2025 08:56
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