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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

CENTRAL ALASKA

11 October 2026, 02:42:02 (+03) 2026-10-10 23:42:02 UTC

2 sources: EMSC, USGS ml
Did you feel this earthquake?
Magnitude
3.1 ml
Depth
116.0 km
Coordinates
62.8534, -151.0579
Data consistency
85/100

Regional activity (100 km)

Last 24 hours
2
Last 7 days
8
Last 30 days
21

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?

Your report adds to a community map of where and how this earthquake was felt. It takes less than a minute.

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

32 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 22
  • M3 10
  • M4 0
  • M5 0
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 5
  • 10–20 km 2
  • 20–40 km 0
  • 40–70 km 1
  • 70–150 km 24
  • 150+ km 0

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 Displayed
CENTRAL ALASKA
 3.1 ml 116.0 km 23:42:02.677 Δt 0 sn · 0 km · ΔM 0 Original record
USGS Earthquake Hazards Program
43 km NNW of Petersville, Alaska
 3.1 ml 113.1 km 23:42:03.290 Δt 0.61 sn · 2.75 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. 11.10.2026 03:38:44 · EMSC · update

    depth: 113.1 → 116 latitude: 62.871 → 62.8534 longitude: -151.02 → -151.0579 time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:02.677+00:00

  2. 11.10.2026 03:38:44 · SISTEM · recompute

    depth: 113.1 → 116 latitude: 62.871 → 62.8534 longitude: -151.02 → -151.0579 time: 2026-10-10T23:42:03.291Z → 2026-10-10 23:42:02.677+00:00

  3. 11.10.2026 03:36:44 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  4. 11.10.2026 03:32:34 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  5. 11.10.2026 03:30:29 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  6. 11.10.2026 03:29:25 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  7. 11.10.2026 03:28:19 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  8. 11.10.2026 03:27:19 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  9. 11.10.2026 03:24:04 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  10. 11.10.2026 03:23:03 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  11. 11.10.2026 03:22:03 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  12. 11.10.2026 03:21:02 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  13. 11.10.2026 03:19:57 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  14. 11.10.2026 03:18:56 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  15. 11.10.2026 03:17:54 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  16. 11.10.2026 03:16:50 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  17. 11.10.2026 03:15:49 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  18. 11.10.2026 03:13:44 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  19. 11.10.2026 03:12:41 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  20. 11.10.2026 03:11:40 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  21. 11.10.2026 03:09:34 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  22. 11.10.2026 03:08:30 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  23. 11.10.2026 03:04:24 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  24. 11.10.2026 03:03:24 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  25. 11.10.2026 03:02:18 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  26. 11.10.2026 03:01:20 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  27. 11.10.2026 02:59:05 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  28. 11.10.2026 02:57:59 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  29. 11.10.2026 02:56:58 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  30. 11.10.2026 02:53:52 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  31. 11.10.2026 02:51:45 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  32. 11.10.2026 02:50:40 · EMSC · update

    time: 2026-10-10T23:42:03.291+00:00 → 2026-10-10T23:42:03.290+00:00

  33. 11.10.2026 02:46:39 · USGS · update

    depth: 111.3 → 113.1 latitude: 62.865 → 62.871 magnitude: 3 → 3.1 time: 2026-10-10T23:42:03.217+00:00 → 2026-10-10T23:42:03.290+00:00

  34. 11.10.2026 02:46:35 · EMSC · update

    depth: 111.3 → 113.1 latitude: 62.865 → 62.871 magnitude: 3 → 3.1 time: 2026-10-10T23:42:03.218+00:00 → 2026-10-10T23:42:03.290+00:00

  35. 11.10.2026 02:46:35 · SISTEM · recompute

    depth: 111.3 → 113.1 latitude: 62.865 → 62.871 magnitude: 3 → 3.1 time: 2026-10-10T23:42:03.218Z → 2026-10-10 23:42:03.291+00:00

  36. 11.10.2026 02:45:34 · USGS · update

    depth: 113 → 111.3 latitude: 62.878 → 62.865 longitude: -151.042 → -151.02 magnitude: 2.9 → 3 time: 2026-10-10T23:42:03.250+00:00 → 2026-10-10T23:42:03.217+00:00 location: 44 km NNW of Petersville, Alaska → 43 km NNW of Petersville, Alaska

  37. 11.10.2026 02:45:32 · SISTEM · recompute

    depth: 113 → 111.3 latitude: 62.878 → 62.865 longitude: -151.042 → -151.02 magnitude: 2.9 → 3 time: 2026-10-10T23:42:03.250Z → 2026-10-10 23:42:03.218+00:00 source count: 1 → 2 confirming sources: usgs → emsc,usgs preferred source: 4 → 3

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