Earthquake Statistics for Alaska

This page provides an overview of the earthquake statistics for the Alaska region, including the total counts over various time periods and magnitude distributions.

Total Earthquakes

Period Total
Last 24h 20
Last Week 216
Last Month 897
Last Year 6114
Total 6114

Magnitude Distribution

Magnitude Count Percentage
<1 0 0%
1 3696 60.5%
2 1864 30.5%
3 358 5.9%
4 147 2.4%
5 44 0.7%
6 4 0.1%
7 1 0%

Biggest Earthquakes

Magnitude Date Location City
7.3 Jul 16, 2025 20:37 87 km S of Sand Point, Alaska Unga
6.2 Mar 21, 2025 14:53 84 km SSE of Adak, Alaska Adak
6.2 Jul 20, 2025 22:28 SOUTH OF ALASKA Unga
6.1 Jul 20, 2025 22:27 119 km SSE of Sand Point, Alaska Sand Point
6.0 Sep 03, 2025 20:57 FOX ISLANDS, ALEUTIAN ISLANDS Nikolski
5.9 Aug 28, 2025 11:07 RAT ISLANDS, ALEUTIAN ISLANDS Rat Islands
5.7 Jul 17, 2025 04:30 ALASKA PENINSULA Unga
5.7 Sep 01, 2025 11:02 117 km SE of Old Harbor, Alaska Old Harbor
5.6 Mar 22, 2025 09:49 ANDREANOF ISLANDS, ALEUTIAN IS. Adak
5.6 Mar 20, 2025 04:28 99 km SSE of Adak, Alaska Adak
5.6 Sep 21, 2025 09:30 123 km SW of Adak, Alaska Adak
5.5 Aug 29, 2025 09:14 263 km W of Adak, Alaska Amchitka
5.5 Apr 02, 2025 16:26 NEAR ISLANDS, ALEUTIAN ISLANDS Near Islands
5.4 May 17, 2025 15:09 138 km SSE of Sand Point, Alaska Sand Point
5.4 Jul 27, 2025 22:47 10 km NNE of Dutch Harbor, Alaska Unalaska
5.4 Sep 06, 2025 20:40 80 km SW of Nikolski, Alaska Nikolski
5.4 Jul 26, 2025 05:03 RAT ISLANDS, ALEUTIAN ISLANDS Amchitka
5.4 Mar 20, 2025 05:13 ANDREANOF ISLANDS, ALEUTIAN IS. Adak
5.4 Jul 16, 2025 14:21 ANDREANOF ISLANDS, ALEUTIAN IS. Atka
5.3 Apr 02, 2025 16:26 39 km NNW of Attu Station, Alaska Attu