Copyright © 2024 Extreme Pursuit.

Augustine

  1. Home
  2. /
  3. Global Volcano Database
  4. /
  5. United States Volcanoes
  6. /
  7. Augustine

 

Augustine Volcano, a young and highly active stratovolcano in the Cook Inlet of Alaska, is characterised by its symmetrical cone shape and a summit elevation of 1,260 meters. Built up by layers of lava, ash, and volcanic debris, Augustine is known for its cyclical pattern of dome growth and collapse, leading to explosive eruptions and the generation of pyroclastic flows and lahars. These eruptions often produce significant ash plumes that disrupt air travel and impact nearby communities. Notable historical eruptions occurred in 1883, 1935, 1976, 1986, and 2006, each with varying degrees of explosivity and associated hazards. The volcano’s location in the Cook Inlet, relatively close to populated areas and air traffic routes, makes it a focus of intensive monitoring and research by the Alaska Volcano Observatory.

Location: Alaska, United States
Coordinates: 59.362591, -153.428827
Volcano Type: Stratovolcano

 

Augustine’s Location

 

Augustine’s Latest Status

2024: Current Volcano Alert Level: NORMAL. Current Aviation Color Code: GREEN

 

Augustine’s Eruptive History

Year(s) Overview of Eruptive Activity
~40,000 years ago – present Augustine has been active for at least this long, building its cone through repeated eruptions.
1812 Possible eruption, but limited historical records.
1883 Significant eruption with a large ash plume and a devastating tsunami that impacted nearby coastal communities. Lava flows and pyroclastic flows were also generated.
1935 Explosive eruption with a significant ash plume and pyroclastic flows.
1963-64 Eruption sequence with ashfall, pyroclastic flows, and lahars.
1976 Major eruption with a series of explosive events. Ash plumes reached heights of 14 km, disrupting air travel and causing ashfall in Anchorage. Pyroclastic flows and lahars were also significant hazards.
1986 Another major eruption with explosive events and ash plumes reaching 12 km. Caused further disruption to air travel and ashfall in south-central Alaska.
2006 Most recent major eruption. Characterized by dome growth and collapse, explosive events, ash plumes, pyroclastic flows, and lahars. Ashfall impacted communities downwind, and air travel was disrupted.

Augustine Monitoring

For monitoring of United States Volcanoes, please refer to USGS.

 

Augustine Images

 

  1. Home
  2. /
  3. Global Volcano Database
  4. /
  5. United States Volcanoes
  6. /
  7. Augustine