Alaska, United States – Earthquakes

This page summarizes earthquakes in Alaska (United States). The most recently recorded event was a magnitude M1.9 earthquake near Kenai Peninsula Borough on 2026-09-06 11:33:15 UTC. All event lists and map markers are limited to the last 30 days.

Seismic profile ↓
Earthquakes (last 30 days)
1087
Max magnitude (last 30 days)
M5.9
Avg magnitude (last 30 days)
M1.89
Avg depth (last 30 days)
42 km

Seismic profile

Analysis period06 Sep 2025 – 06 Sep 2026Data as of: 06 Sep 2026 · 11:00 UTC
Minimum magnitude

What the data show

Alaska · M ≥ 4.5

After source reconciliation, the catalogue contains 110 event entries of M4.5 or above for this area and period, spread over 61 days.

Catalogue entries11006 Sep 2025 – 06 Sep 2026
Strongest recorded earthquakeM6.7Alaska ↗
Depth · median10.5 km110 events with valid depth
Last 30 days7Previous 30 days: 7

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

06 Sep 2025 – 06 Sep 2026

Earthquakes by month

M ≥ 4.5

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

View data table
MonthAnalysis periodCatalogue entries
September 2025 · Partial month06 Sep 2025 – 30 Sep 20257
October 202501 Oct 2025 – 31 Oct 202513
November 202501 Nov 2025 – 30 Nov 202517
December 202501 Dec 2025 – 31 Dec 202514
January 202601 Jan 2026 – 31 Jan 202611
February 202601 Feb 2026 – 28 Feb 202613
March 202601 Mar 2026 – 31 Mar 20260
April 202601 Apr 2026 – 30 Apr 20268
May 202601 May 2026 – 31 May 20268
June 202601 Jun 2026 – 30 Jun 20265
July 202601 Jul 2026 – 31 Jul 20267
August 202601 Aug 2026 – 31 Aug 20264
September 2026 · Partial month01 Sep 2026 – 06 Sep 20263

How strong were the earthquakes?

Catalogue entries · 110

M 4.5 – < 5.049
M 5.0 – < 6.056
M ≥ 6.05

At what depth did they occur?

110 events with valid depth

0 – < 30 km60
30 – < 70 km31
70 – < 300 km19
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 days7
Previous 30 days7
Median of the eleven previous 30-day periods10

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

06 Sep 2025 – 06 Sep 2026 · M ≥ 4.5

Data and methodology

Analysis period: 06 Sep 2025 11:00 – 06 Sep 2026 11:00 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).

20 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.

  • GFZ36
  • USGS33
  • EMSC15
  • RESIF12
  • SERBIA_RSZ6
  • USP3
  • ISC2
  • INGV2
  • NNSN1

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

Data as of: 06 Sep 2026 · 11:32 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 7756 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)

M1.9
Kenai Peninsula Borough
2026-09-06 · 11:33 UTC · 5 km
›
M2.7
Port Ashton
2026-09-06 · 10:50 UTC · 27 km
›
M0.4
Matanuska-Susitna Borough
2026-09-06 · 09:35 UTC · 73 km
›
M1.1
Unorganized Borough
2026-09-06 · 08:37 UTC · 11 km
›
M1.3
Matanuska-Susitna Borough
2026-09-06 · 08:33 UTC · 46 km
›
M1.1
Unorganized Borough
2026-09-06 · 07:51 UTC · 5 km
›
M1.7
Denali Borough
2026-09-06 · 07:47 UTC · 125 km
›
M1.6
Kenai Peninsula Borough
2026-09-06 · 05:56 UTC · 75 km
›
M1.2
Unorganized Borough
2026-09-06 · 04:38 UTC · 13 km
›
M2.0
Yakutat
2026-09-06 · 03:15 UTC · 5 km
›
M1.0
Fairbanks North Star Borough
2026-09-06 · 02:20 UTC · 5 km
›
M2.0
Unorganized Borough
2026-09-06 · 01:38 UTC · 33 km
›
M1.0
Kodiak Island Borough
2026-09-06 · 01:34 UTC · 11 km
›
M2.7
Lake and Peninsula Borough
2026-09-06 · 00:59 UTC · 17 km
›
M2.8
Aleutians East Borough
2026-09-06 · 00:59 UTC · 15 km
›
M0.5
Kodiak Island Borough
2026-09-06 · 00:58 UTC · 6 km
›
M2.0
Kenai Peninsula Borough
2026-09-06 · 00:11 UTC · 131 km
›
M1.4
Unorganized Borough
2026-09-05 · 23:41 UTC · 5 km
›
M3.0
Matanuska-Susitna Borough
2026-09-05 · 23:31 UTC · 46 km
›
M1.3
Unorganized Borough
2026-09-05 · 23:30 UTC · 5 km
›
M4.0
North Slope Borough
2026-09-05 · 23:15 UTC · 15 km
›
M0.8
Unorganized Borough
2026-09-05 · 22:05 UTC · 18 km
›
M0.5
Kodiak Island Borough
2026-09-05 · 20:25 UTC · 5 km
›
M1.3
Matanuska-Susitna Borough
2026-09-05 · 20:03 UTC · 9 km
›
M1.1
Unorganized Borough
2026-09-05 · 19:55 UTC · 5 km
›
M1.5
Unorganized Borough
2026-09-05 · 18:36 UTC · 19 km
›
M3.1
Lake and Peninsula Borough
2026-09-05 · 18:01 UTC · 146 km
›
M2.3
Alaska
2026-09-05 · 17:27 UTC · 16 km
›
M0.8
Unorganized Borough
2026-09-05 · 17:08 UTC · 5 km
›
M1.8
Sterling
2026-09-05 · 15:35 UTC · 21 km
›
M1.4
Houston
2026-09-05 · 15:33 UTC · 22 km
›
M1.5
Matanuska-Susitna Borough
2026-09-05 · 15:17 UTC · 19 km
›
M1.9
Kodiak Island Borough
2026-09-05 · 15:13 UTC · 29 km
›
M1.5
Yakutat
2026-09-05 · 15:05 UTC · 5 km
›
M1.9
Matanuska-Susitna Borough
2026-09-05 · 15:01 UTC · 65 km
›
M1.4
Matanuska-Susitna Borough
2026-09-05 · 14:17 UTC · 87 km
›
M1.0
Matanuska-Susitna Borough
2026-09-05 · 13:44 UTC · 50 km
›
M1.7
Matanuska-Susitna Borough
2026-09-05 · 12:38 UTC · 107 km
›
M1.8
Denali Borough
2026-09-05 · 12:25 UTC · 1 km
›
M1.0
Kodiak Island Borough
2026-09-05 · 12:10 UTC · 5 km
›
M1.3
Unorganized Borough
2026-09-05 · 11:35 UTC · 5 km
›
M1.8
Unorganized Borough
2026-09-05 · 11:33 UTC · 17 km
›
M1.1
Kodiak Island Borough
2026-09-05 · 11:29 UTC · 5 km
›
M2.4
North Slope Borough
2026-09-05 · 10:55 UTC · 8 km
›
M2.5
Matanuska-Susitna Borough
2026-09-05 · 10:22 UTC · 2 km
›
M1.7
Yakutat
2026-09-05 · 08:11 UTC · 17 km
›
M1.6
Matanuska-Susitna Borough
2026-09-05 · 07:47 UTC · 111 km
›
M2.0
Denali Borough
2026-09-05 · 07:34 UTC · 0 km
›
M1.2
Matanuska-Susitna Borough
2026-09-05 · 05:42 UTC · 5 km
›
M1.0
Unorganized Borough
2026-09-05 · 05:26 UTC · 9 km
›
M1.9
Unorganized Borough
2026-09-05 · 04:35 UTC · 12 km
›
M1.7
Kenai Peninsula Borough
2026-09-05 · 04:02 UTC · 92 km
›
M1.7
Kenai Peninsula Borough
2026-09-05 · 02:43 UTC · 70 km
›
M1.3
Kenai Peninsula Borough
2026-09-05 · 02:26 UTC · 123 km
›
M2.0
Kenai Peninsula Borough
2026-09-05 · 01:35 UTC · 44 km
›
M1.6
Kenai Peninsula Borough
2026-09-05 · 01:13 UTC · 111 km
›
M1.0
Kenai Peninsula Borough
2026-09-04 · 23:46 UTC · 125 km
›
M2.8
Fairbanks North Star Borough
2026-09-04 · 23:31 UTC · 19 km
›
M2.6
Kenai Peninsula Borough
2026-09-04 · 23:23 UTC · 77 km
›
M1.1
Fairbanks North Star Borough
2026-09-04 · 23:03 UTC · 3 km
›
M1.9
Denali Borough
2026-09-04 · 22:39 UTC · 1 km
›
M2.1
Matanuska-Susitna Borough
2026-09-04 · 21:15 UTC · 0 km
›
M1.5
Matanuska-Susitna Borough
2026-09-04 · 20:05 UTC · 4 km
›
M2.7
Kodiak Island Borough
2026-09-04 · 19:40 UTC · 19 km
›
M3.0
Lake and Peninsula Borough
2026-09-04 · 17:57 UTC · 132 km
›
M2.2
Lake and Peninsula Borough
2026-09-04 · 17:57 UTC · 130 km
›
M2.9
Lake and Peninsula Borough
2026-09-04 · 17:01 UTC · 5 km
›
M1.0
Unorganized Borough
2026-09-04 · 16:57 UTC · 11 km
›
M1.2
Kodiak Island Borough
2026-09-04 · 16:42 UTC · 5 km
›
M1.3
Yakutat
2026-09-04 · 16:31 UTC · 5 km
›
M2.1
Kenai Peninsula Borough
2026-09-04 · 15:23 UTC · 62 km
›
M1.9
Kodiak Island Borough
2026-09-04 · 14:58 UTC · 58 km
›
M2.3
Matanuska-Susitna Borough
2026-09-04 · 14:09 UTC · 94 km
›
M1.1
Yakutat
2026-09-04 · 13:24 UTC · 5 km
›
M2.8
Denali Borough
2026-09-04 · 12:11 UTC · 5 km
›
M1.4
Matanuska-Susitna Borough
2026-09-04 · 12:09 UTC · 27 km
›
M2.0
Matanuska-Susitna Borough
2026-09-04 · 12:05 UTC · 48 km
›
M2.5
North Slope Borough
2026-09-04 · 12:04 UTC · 5 km
›
M1.4
Matanuska-Susitna Borough
2026-09-04 · 11:43 UTC · 30 km
›
M2.0
Yakutat
2026-09-04 · 11:38 UTC · 0 km
›
M1.3
Unorganized Borough
2026-09-04 · 10:37 UTC · 12 km
›
M1.3
Denali Borough
2026-09-04 · 08:51 UTC · 5 km
›
M1.4
Denali Borough
2026-09-04 · 08:46 UTC · 2 km
›
M1.4
Alaska
2026-09-04 · 08:27 UTC · 57 km
›
M2.4
Matanuska-Susitna Borough
2026-09-04 · 06:50 UTC · 22 km
›
M1.2
Kenai Peninsula Borough
2026-09-04 · 06:31 UTC · 50 km
›
M1.6
Kenai Peninsula Borough
2026-09-04 · 06:04 UTC · 71 km
›
M1.9
Matanuska-Susitna Borough
2026-09-04 · 05:57 UTC · 95 km
›
M1.9
Matanuska-Susitna Borough
2026-09-04 · 05:53 UTC · 111 km
›
M1.0
Yakutat
2026-09-04 · 05:14 UTC · 16 km
›
M2.0
Denali Borough
2026-09-04 · 04:47 UTC · 130 km
›
M1.0
Yakutat
2026-09-04 · 04:19 UTC · 5 km
›
M1.4
Matanuska-Susitna Borough
2026-09-04 · 03:51 UTC · 77 km
›
M1.8
Kenai Peninsula Borough
2026-09-04 · 03:02 UTC · 122 km
›
M2.1
Denali Borough
2026-09-04 · 03:00 UTC · 86 km
›
M1.0
Matanuska-Susitna Borough
2026-09-04 · 02:12 UTC · 14 km
›
M0.8
Yakutat
2026-09-04 · 01:32 UTC · 5 km
›
M2.6
Lake and Peninsula Borough
2026-09-04 · 01:06 UTC · 5 km
›
M1.9
Lake and Peninsula Borough
2026-09-04 · 00:20 UTC · 5 km
›
M1.4
Fairbanks North Star Borough
2026-09-03 · 23:45 UTC · 11 km
›
M3.1
Kenai Peninsula Borough
2026-09-03 · 23:21 UTC · 114 km
›
M1.9
Kenai Peninsula Borough
2026-09-03 · 22:35 UTC · 89 km
›
M1.9
Matanuska-Susitna Borough
2026-09-03 · 20:49 UTC · 71 km
›
M5.3
Alaska
2026-09-03 · 20:21 UTC · 10 km
›
M1.0
Unorganized Borough
2026-09-03 · 20:19 UTC · 5 km
›
M1.7
Alaska
2026-09-03 · 19:57 UTC · 82 km
›
M1.8
Kenai Peninsula Borough
2026-09-03 · 19:17 UTC · 106 km
›
M1.4
Alaska
2026-09-03 · 19:11 UTC · 3 km
›
M5.2
Unorganized Borough
2026-09-03 · 18:45 UTC · 10 km
›
M2.8
Matanuska-Susitna Borough
2026-09-03 · 18:07 UTC · 54 km
›
M1.2
Unorganized Borough
2026-09-03 · 17:49 UTC · 19 km
›
M1.6
Kenai Peninsula Borough
2026-09-03 · 17:45 UTC · 26 km
›
M1.0
Kenai Peninsula Borough
2026-09-03 · 17:22 UTC · 124 km
›
M1.0
Yakutat
2026-09-03 · 17:21 UTC · 18 km
›
M1.2
Matanuska-Susitna Borough
2026-09-03 · 16:59 UTC · 87 km
›
M1.6
Aleutians East Borough
2026-09-03 · 16:13 UTC · 25 km
›
M1.9
Kodiak Island Borough
2026-09-03 · 15:55 UTC · 53 km
›
M4.7
Unorganized Borough
2026-09-03 · 15:42 UTC · 10 km
›
M0.8
Kenai Peninsula Borough
2026-09-03 · 15:41 UTC · 5 km
›
M0.7
Kenai Peninsula Borough
2026-09-03 · 15:04 UTC · 27 km
›