Alaska, United States – Earthquakes

This page summarizes earthquakes in Alaska (United States). The most recently recorded event was a magnitude M2.7 earthquake near Kenai Peninsula Borough on 2026-09-12 00:28:57 UTC. All event lists and map markers are limited to the last 30 days.

Seismic profile ↓
Earthquakes (last 30 days)
1068
Max magnitude (last 30 days)
M5.9
Avg magnitude (last 30 days)
M1.92
Avg depth (last 30 days)
42 km

Seismic profile

Analysis period12 Sep 2025 – 11 Sep 2026Data as of: 12 Sep 2026 · 00:00 UTC
Minimum magnitude

What the data show

Alaska · M ≥ 3.0

After source reconciliation, the catalogue contains 661 event entries of M3.0 or above for this area and period, spread over 264 days.

Catalogue entries66112 Sep 2025 – 11 Sep 2026
Strongest recorded earthquakeM6.7Alaska ↗
Depth · median32.2 km661 events with valid depth
Last 30 days69Previous 30 days: 52

These figures describe the stored catalogue. Recording, magnitude types and geographic attribution may vary by source and period; completeness has not been established.

12 Sep 2025 – 11 Sep 2026

Earthquakes by month

M ≥ 3.0

Each bar counts events within the selected period. Hatched months are only partially included.

View data table
MonthAnalysis periodCatalogue entries
September 2025 · Partial month12 Sep 2025 – 30 Sep 202534
October 202501 Oct 2025 – 31 Oct 202550
November 202501 Nov 2025 – 30 Nov 202576
December 202501 Dec 2025 – 31 Dec 202591
January 202601 Jan 2026 – 31 Jan 202673
February 202601 Feb 2026 – 28 Feb 202656
March 202601 Mar 2026 – 31 Mar 202627
April 202601 Apr 2026 – 30 Apr 202635
May 202601 May 2026 – 31 May 202637
June 202601 Jun 2026 – 30 Jun 202649
July 202601 Jul 2026 – 31 Jul 202643
August 202601 Aug 2026 – 31 Aug 202664
September 2026 · Partial month01 Sep 2026 – 11 Sep 202626

How strong were the earthquakes?

Catalogue entries · 661

M 3.0 – < 4.0488
M 4.0 – < 5.0112
M 5.0 – < 6.056
M ≥ 6.05

At what depth did they occur?

661 events with valid depth

0 – < 30 km327
30 – < 70 km158
70 – < 300 km176
300 – 750 km0

0 events without valid depth are excluded here.

Depth · median

Half of the available values lie on either side of the median; ties are possible.

Current period in context

Last 30 days69
Previous 30 days52
Median of the eleven previous 30-day periods45

Same magnitude threshold, separate periods. Differences may also reflect changes in recording. No hazard level or forecast is inferred.

Where were earthquakes recorded?

Events assigned to Alaska in the stored location data are analysed. This is not a radius search. Missing or different attributions are excluded.

The interactive map complements the event links on this page.

Marker size and colour indicate magnitude.

Strongest recorded earthquake

12 Sep 2025 – 11 Sep 2026 · M ≥ 3.0

Data and methodology

Analysis period: 12 Sep 2025 00:00 – 12 Sep 2026 00:00 UTC

Data and methodology

Reports are first reconciled using existing event associations. Additional reports from different sources are consolidated only when every pair is within 5 seconds, 10 km and 0.5 magnitude units, source groups do not overlap and exactly one group matches. Ambiguous cases remain separate. The preferred report determines magnitude, time and area; period and magnitude filters are applied afterwards. The start is included and the end excluded (UTC).

186 additional source reports were consolidated during source reconciliation.

Events assigned to Alaska in the stored location data are analysed. This is not a radius search. Missing or different attributions are excluded.

These figures describe the stored catalogue. Recording, magnitude types and geographic attribution may vary by source and period; completeness has not been established.

Source reports used

The preferred report of each group is counted. Source priority follows the earthquake list. Different magnitude types and recording gaps limit comparability.

  • USGS395
  • EMSC176
  • GFZ37
  • ISC25
  • RESIF12
  • SERBIA_RSZ6
  • NRCAN_XML4
  • USP3
  • INGV2
  • NNSN1

The profile is recalculated hourly from the earthquake catalogue. Later source revisions may also change historical values.

Data as of: 12 Sep 2026 · 00:32 UTC

Map (last 30 days)

< 2 2–4 4–5 ≥ 5

About Alaska

Alaska is a non-contiguous U.S. state located in the northwestern regions of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii.

Seismic activity in 2026

In 2026, Alaska recorded 7986 earthquakes within United States. The average magnitude was M1.84. The strongest event reached M6.3.

Based on the number of recorded earthquakes in 2026, Alaska is currently among the Top 5 most active regions in United States (rank #2 by count).

Considering the strongest recorded event in 2026, Alaska is among the Top 5 strongest regions in United States (rank #1 by max magnitude).

Located on the North America Plate.

Earthquakes in Alaska (last 30 days)

M2.7
Kenai Peninsula Borough
2026-09-12 · 00:28 UTC · 24 km
›
M1.3
Lake and Peninsula Borough
2026-09-12 · 00:21 UTC · 106 km
›
M1.2
Kenai Peninsula Borough
2026-09-11 · 23:55 UTC · 5 km
›
M1.0
Fairbanks North Star Borough
2026-09-11 · 23:48 UTC · 4 km
›
M1.7
Kenai Peninsula Borough
2026-09-11 · 23:35 UTC · 79 km
›
M0.9
Lake and Peninsula Borough
2026-09-11 · 23:10 UTC · 5 km
›
M2.4
Matanuska-Susitna Borough
2026-09-11 · 22:52 UTC · 29 km
›
M1.8
Denali Borough
2026-09-11 · 21:42 UTC · 122 km
›
M1.9
Unorganized Borough
2026-09-11 · 20:14 UTC · 19 km
›
M1.8
Matanuska-Susitna Borough
2026-09-11 · 20:11 UTC · 130 km
›
M1.8
Matanuska-Susitna Borough
2026-09-11 · 20:03 UTC · 111 km
›
M0.7
Unorganized Borough
2026-09-11 · 19:45 UTC · 5 km
›
M0.8
Kenai Peninsula Borough
2026-09-11 · 18:34 UTC · 5 km
›
M2.0
Alaska
2026-09-11 · 18:19 UTC · 1 km
›
M1.9
Kodiak Island Borough
2026-09-11 · 18:12 UTC · 59 km
›
M2.0
Alaska
2026-09-11 · 18:12 UTC · 6 km
›
M1.2
Matanuska-Susitna Borough
2026-09-11 · 17:29 UTC · 16 km
›
M2.3
Unorganized Borough
2026-09-11 · 17:07 UTC · 31 km
›
M1.4
Alaska
2026-09-11 · 16:35 UTC · 86 km
›
M1.7
Yakutat
2026-09-11 · 16:19 UTC · 5 km
›
M1.9
Denali Borough
2026-09-11 · 15:54 UTC · 5 km
›
M0.8
Unorganized Borough
2026-09-11 · 15:27 UTC · 15 km
›
M0.6
Matanuska-Susitna Borough
2026-09-11 · 15:02 UTC · 5 km
›
M1.7
Unorganized Borough
2026-09-11 · 15:00 UTC · 12 km
›
M1.0
Yakutat
2026-09-11 · 14:46 UTC · 5 km
›
M1.8
Kodiak Island Borough
2026-09-11 · 14:46 UTC · 46 km
›
M0.9
Unorganized Borough
2026-09-11 · 14:34 UTC · 27 km
›
M1.1
Lake and Peninsula Borough
2026-09-11 · 14:34 UTC · 103 km
›
M2.6
Unorganized Borough
2026-09-11 · 14:05 UTC · 88 km
›
M2.2
Big Lake
2026-09-11 · 13:50 UTC · 60 km
›
M1.8
Kenai Peninsula Borough
2026-09-11 · 13:42 UTC · 93 km
›
M2.2
Unorganized Borough
2026-09-11 · 13:16 UTC · 21 km
›
M2.1
Denali Borough
2026-09-11 · 12:54 UTC · 133 km
›
M1.5
Unorganized Borough
2026-09-11 · 12:42 UTC · 1 km
›
M1.7
Kodiak Island Borough
2026-09-11 · 12:16 UTC · 66 km
›
M1.3
Unorganized Borough
2026-09-11 · 11:24 UTC · 16 km
›
M5.4
Alaska
2026-09-11 · 10:47 UTC · 40 km
›
M1.1
Lake and Peninsula Borough
2026-09-11 · 10:22 UTC · 20 km
›
M1.4
Matanuska-Susitna Borough
2026-09-11 · 08:05 UTC · 33 km
›
M1.8
Unorganized Borough
2026-09-11 · 08:01 UTC · 16 km
›
M1.6
Kenai Peninsula Borough
2026-09-11 · 07:55 UTC · 127 km
›
M1.4
Unorganized Borough
2026-09-11 · 07:53 UTC · 11 km
›
M4.4
Alaska
2026-09-11 · 07:32 UTC · 163 km
›
M1.0
Matanuska-Susitna Borough
2026-09-11 · 07:29 UTC · 55 km
›
M4.3
Matanuska-Susitna Borough
2026-09-11 · 07:10 UTC · 30 km
›
M2.4
North Slope Borough
2026-09-11 · 07:06 UTC · 19 km
›
M0.8
Unorganized Borough
2026-09-11 · 05:04 UTC · 11 km
›
M1.4
Kenai Peninsula Borough
2026-09-11 · 04:50 UTC · 98 km
›
M1.8
Denali Borough
2026-09-11 · 04:13 UTC · 5 km
›
M1.8
Matanuska-Susitna Borough
2026-09-11 · 03:47 UTC · 5 km
›
M1.8
Kenai Peninsula Borough
2026-09-11 · 03:10 UTC · 104 km
›
M1.4
Unorganized Borough
2026-09-11 · 03:01 UTC · 14 km
›
M2.8
Alaska
2026-09-11 · 02:56 UTC · 67 km
›
M1.7
Kodiak Island Borough
2026-09-11 · 01:07 UTC · 64 km
›
M1.9
Kenai Peninsula Borough
2026-09-11 · 00:44 UTC · 3 km
›
M1.9
Denali Borough
2026-09-11 · 00:32 UTC · 5 km
›
M0.9
Fairbanks North Star Borough
2026-09-11 · 00:09 UTC · 5 km
›
M1.1
Kenai Peninsula Borough
2026-09-11 · 00:01 UTC · 2 km
›
M1.7
Lake and Peninsula Borough
2026-09-10 · 23:46 UTC · 36 km
›
M1.0
Kenai Peninsula Borough
2026-09-10 · 23:32 UTC · 2 km
›
M2.5
Lake and Peninsula Borough
2026-09-10 · 23:29 UTC · 42 km
›
M1.6
Kenai Peninsula Borough
2026-09-10 · 23:13 UTC · 3 km
›
M4.1
Unorganized Borough
2026-09-10 · 23:03 UTC · 5 km
›
M1.9
Unorganized Borough
2026-09-10 · 22:20 UTC · 18 km
›
M2.7
Denali Borough
2026-09-10 · 21:25 UTC · 127 km
›
M0.8
Lake and Peninsula Borough
2026-09-10 · 21:18 UTC · 5 km
›
M4.0
Unorganized Borough
2026-09-10 · 21:14 UTC · 100 km
›
M1.6
Kenai Peninsula Borough
2026-09-10 · 21:13 UTC · 87 km
›
M1.6
Kenai Peninsula Borough
2026-09-10 · 21:00 UTC · 5 km
›
M2.4
Alaska
2026-09-10 · 19:17 UTC · 28 km
›
M2.4
Houston
2026-09-10 · 19:05 UTC · 29 km
›
M1.6
Alaska
2026-09-10 · 16:36 UTC · 55 km
›
M1.5
Kenai Peninsula Borough
2026-09-10 · 16:27 UTC · 74 km
›
M1.3
Lake and Peninsula Borough
2026-09-10 · 15:47 UTC · 5 km
›
M1.8
Lake and Peninsula Borough
2026-09-10 · 15:43 UTC · 128 km
›
M1.3
Kenai Peninsula Borough
2026-09-10 · 15:40 UTC · 49 km
›
M2.3
Alaska
2026-09-10 · 15:35 UTC · 47 km
›
M3.0
Alaska
2026-09-10 · 15:25 UTC · 2 km
›
M1.7
Matanuska-Susitna Borough
2026-09-10 · 15:00 UTC · 72 km
›
M2.0
Unorganized Borough
2026-09-10 · 14:52 UTC · 150 km
›
M1.8
Lake and Peninsula Borough
2026-09-10 · 14:05 UTC · 3 km
›
M1.9
Lake and Peninsula Borough
2026-09-10 · 14:02 UTC · 2 km
›
M0.8
Unorganized Borough
2026-09-10 · 13:48 UTC · 5 km
›
M1.4
Matanuska-Susitna Borough
2026-09-10 · 13:43 UTC · 1 km
›
M1.1
Lake and Peninsula Borough
2026-09-10 · 13:09 UTC · 5 km
›
M1.9
Kenai Peninsula Borough
2026-09-10 · 12:50 UTC · 105 km
›
M1.7
Kenai Peninsula Borough
2026-09-10 · 11:10 UTC · 129 km
›
M1.1
Unorganized Borough
2026-09-10 · 11:05 UTC · 11 km
›
M2.1
Matanuska-Susitna Borough
2026-09-10 · 09:53 UTC · 0 km
›
M2.3
Kodiak Island Borough
2026-09-10 · 08:59 UTC · 51 km
›
M1.7
Unorganized Borough
2026-09-10 · 07:46 UTC · 0 km
›
M0.5
Lake and Peninsula Borough
2026-09-10 · 06:45 UTC · 1 km
›
M1.9
Alaska
2026-09-10 · 06:19 UTC · 61 km
›
M1.8
Matanuska-Susitna Borough
2026-09-10 · 06:15 UTC · 73 km
›
M1.5
Fairbanks North Star Borough
2026-09-10 · 06:05 UTC · 13 km
›
M4.4
Matanuska-Susitna Borough
2026-09-10 · 05:18 UTC · 66 km
›
M3.6
Denali Borough
2026-09-10 · 02:22 UTC · 5 km
›
M2.2
Denali Borough
2026-09-10 · 00:28 UTC · 7 km
›
M1.5
Matanuska-Susitna Borough
2026-09-09 · 23:44 UTC · 12 km
›
M2.8
Kenai Peninsula Borough
2026-09-09 · 22:01 UTC · 68 km
›
M1.3
Yakutat
2026-09-09 · 21:44 UTC · 4 km
›
M2.7
Alaska
2026-09-09 · 21:38 UTC · 78 km
›
M2.3
Kenai Peninsula Borough
2026-09-09 · 20:22 UTC · 57 km
›
M2.3
Lake and Peninsula Borough
2026-09-09 · 20:01 UTC · 7 km
›
M1.8
Matanuska-Susitna Borough
2026-09-09 · 19:53 UTC · 20 km
›
M1.9
Kenai Peninsula Borough
2026-09-09 · 19:26 UTC · 57 km
›
M2.9
Matanuska-Susitna Borough
2026-09-09 · 18:35 UTC · 54 km
›
M0.6
Matanuska-Susitna Borough
2026-09-09 · 17:00 UTC · 28 km
›
M1.8
Matanuska-Susitna Borough
2026-09-09 · 13:51 UTC · 73 km
›
M1.6
Lake and Peninsula Borough
2026-09-09 · 13:47 UTC · 17 km
›
M1.9
Matanuska-Susitna Borough
2026-09-09 · 13:07 UTC · 90 km
›
M1.2
Unorganized Borough
2026-09-09 · 12:37 UTC · 14 km
›
M1.3
Unorganized Borough
2026-09-09 · 12:24 UTC · 5 km
›
M2.2
Matanuska-Susitna Borough
2026-09-09 · 10:54 UTC · 18 km
›
M2.2
Unorganized Borough
2026-09-09 · 10:39 UTC · 14 km
›
M3.0
Unorganized Borough
2026-09-09 · 10:17 UTC · 48 km
›
M1.3
Matanuska-Susitna Borough
2026-09-09 · 07:52 UTC · 18 km
›
M1.6
Denali Borough
2026-09-09 · 07:51 UTC · 5 km
›
M1.7
Matanuska-Susitna Borough
2026-09-09 · 07:40 UTC · 54 km
›
M2.5
Kenai Peninsula Borough
2026-09-09 · 07:22 UTC · 77 km
›