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Significant earthquake

This summarises a recorded earthquake only; it is not a warning or a prediction. Follow AFAD and the competent authorities for official statements and guidance.

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3.1

49 km WNW of Nanwalek, Alaska

23 October 2026, 22:10:45 (+03) 2026-10-23 19:10:45 UTC

2 sources: EMSC, USGS ml
Did you feel this earthquake?
Magnitude
3.1 ml
Depth
93.6 km
Coordinates
59.5720, -152.6750
Data consistency
90/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
9
Last 30 days
45

Approximate energy released

≈ 0.7 t TNT

2.82e+9 J

Approximated with the Gutenberg–Richter relation (log E = 1.5 M + 4.8); depends on magnitude type. Gutenberg & Richter (1956).

Did you feel this earthquake?

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Community reports

Based on voluntary reports from users; not an instrumental measurement or official intensity. For official information follow AFAD and Kandilli Observatory announcements.

Impact information reported by sources

  • USGS Earthquake Hazards Program Tsunami flag: No

These values are automatic products of the respective agency, not an assessment by this platform. For tsunami warnings follow the Kandilli Observatory Regional Earthquake-Tsunami Monitoring Center and AFAD.

Nearby places

No records.

Nearby faults (50 km)

No mapped fault within 50 km.

Last year, within 100 km

60 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 52
  • M3 8
  • M4 0
  • M5 0
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 0
  • 10–20 km 0
  • 20–40 km 0
  • 40–70 km 9
  • 70–150 km 49
  • 150+ km 2

Largest previous earthquakes within 100 km

Largest earthquakes in the platform catalogue and entries from historical catalogues (with citation).

Comparison with past records

…

No earlier earthquakes are recorded in this area.

  • Source:

Where does this earthquake come from?

Source comparison

Agency Magnitude Depth Time (UTC) Difference from master Original record
EMSC-CSEM
SOUTHERN ALASKA
 3.1 ml 95.4 km 19:10:44.857 Δt 0.19 sn · 3.57 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
49 km WNW of Nanwalek, Alaska
 3.1 ml 93.6 km 19:10:45.046 Δt 0 sn · 0 km · ΔM 0 Original record

This value summarises agreement between sources; it is not a measure of scientific accuracy. Euro-Mediterranean Seismological Centre (EMSC-CSEM) — CC BY 4.0 U.S. Geological Survey (USGS) Earthquake Hazards Program — Public domain (U.S. Government)

Revision history

  1. 28.10.2026 22:48:07 · USGS · update

    depth: 93.4 → 93.6 latitude: 59.574 → 59.572 longitude: -152.665 → -152.675 time: 2026-10-23T19:10:45.124+00:00 → 2026-10-23T19:10:45.046+00:00 location: 48 km WNW of Nanwalek, Alaska → 49 km WNW of Nanwalek, Alaska review status: automatic → reviewed

  2. 28.10.2026 22:48:07 · SISTEM · recompute

    depth: 95.4 → 93.6 latitude: 59.59 → 59.572 longitude: -152.7272 → -152.675 time: 2026-10-23T19:10:44.857Z → 2026-10-23 19:10:45.046+00:00 review status: automatic → reviewed preferred source: 3 → 4

  3. 24.10.2026 16:55:19 · EMSC · update

    depth: 93.4 → 95.4 latitude: 59.574 → 59.59 longitude: -152.665 → -152.7272 time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:44.857+00:00

  4. 24.10.2026 16:55:19 · SISTEM · recompute

    depth: 93.4 → 95.4 latitude: 59.574 → 59.59 longitude: -152.665 → -152.7272 time: 2026-10-23T19:10:45.125Z → 2026-10-23 19:10:44.857+00:00

  5. 23.10.2026 23:15:44 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  6. 23.10.2026 23:14:40 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  7. 23.10.2026 23:12:40 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  8. 23.10.2026 23:11:35 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  9. 23.10.2026 23:10:31 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  10. 23.10.2026 23:09:06 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  11. 23.10.2026 23:08:01 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  12. 23.10.2026 23:00:39 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  13. 23.10.2026 22:59:35 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  14. 23.10.2026 22:58:32 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  15. 23.10.2026 22:57:32 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  16. 23.10.2026 22:56:28 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  17. 23.10.2026 22:54:18 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  18. 23.10.2026 22:50:55 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  19. 23.10.2026 22:49:54 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  20. 23.10.2026 22:46:52 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  21. 23.10.2026 22:45:47 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  22. 23.10.2026 22:43:44 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  23. 23.10.2026 22:42:41 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  24. 23.10.2026 22:40:32 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  25. 23.10.2026 22:39:20 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  26. 23.10.2026 22:38:06 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  27. 23.10.2026 22:37:07 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  28. 23.10.2026 22:34:01 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  29. 23.10.2026 22:31:54 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  30. 23.10.2026 22:28:52 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  31. 23.10.2026 22:27:50 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  32. 23.10.2026 22:24:39 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  33. 23.10.2026 22:22:37 · EMSC · update

    time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  34. 23.10.2026 22:16:01 · USGS · update

    magnitude: 3 → 3.1

  35. 23.10.2026 22:15:59 · EMSC · update

    magnitude: 3 → 3.1 time: 2026-10-23T19:10:45.125+00:00 → 2026-10-23T19:10:45.124+00:00

  36. 23.10.2026 22:15:59 · SISTEM · recompute

    magnitude: 3 → 3.1

  37. 23.10.2026 22:14:58 · USGS · update

    depth: 94.2 → 93.4 latitude: 59.573 → 59.574 longitude: -152.704 → -152.665 magnitude: 2.9 → 3 time: 2026-10-23T19:10:45.120+00:00 → 2026-10-23T19:10:45.124+00:00 location: 50 km WNW of Nanwalek, Alaska → 48 km WNW of Nanwalek, Alaska

  38. 23.10.2026 22:14:56 · SISTEM · recompute

    depth: 94.2 → 93.4 latitude: 59.573 → 59.574 longitude: -152.704 → -152.665 magnitude: 2.9 → 3 time: 2026-10-23T19:10:45.120Z → 2026-10-23 19:10:45.125+00:00 source count: 1 → 2 confirming sources: usgs → emsc,usgs preferred source: 4 → 3

  39. 23.10.2026 22:13:58 · USGS · update

    depth: 94.7 → 94.2 latitude: 59.569 → 59.573 longitude: -152.691 → -152.704 time: 2026-10-23T19:10:45.018+00:00 → 2026-10-23T19:10:45.120+00:00 location: 49 km WNW of Nanwalek, Alaska → 50 km WNW of Nanwalek, Alaska

  40. 23.10.2026 22:13:58 · SISTEM · recompute

    depth: 94.7 → 94.2 latitude: 59.569 → 59.573 longitude: -152.691 → -152.704 time: 2026-10-23T19:10:45.018Z → 2026-10-23 19:10:45.120+00:00

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