As of today, March 21, 2025, there have been eight earthquakes greater than magnitude 5 in two days in the Andreanof Islands region of the western Aleutian chain (Figure 1).
Mid-day on Sunday, December 8, 2024, a magnitude 6.3 earthquake was recorded southwest of Atka Island in the western Aleutians (Figure 1). The earthquake triggered interest because of its significant size.
2024 Seismicity Year in Review
Alaska had a relatively quiet 2024 as far as numbers of seismic events, but several earthquake swarms kept things interesting. Even a “quiet” year, however, keeps the Earthquake Center busy:
Let It Go: Earthquake Swarm Releases Strain along the Subduction Zone
Late on May 1, 2024, a flurry of earthquakes rattled offshore of Herbert Island. In the span of 12 minutes, four earthquakes over magnitude 5 ruptured in the Fox Islands region of the Aleutian Islands (Figure 1).
Earthquakes reported in Alaska so far this year: 6508
