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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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3.6

115 km SW of Nikolski, Alaska

5 November 2026, 11:59:29 (+03) 2026-11-05 08:59:29 UTC

2 sources: EMSC, USGS mb
Did you feel this earthquake?
Magnitude
3.6 mb
Depth
43.0 km
Coordinates
52.1582, -169.9839
Data consistency
87/100

Regional activity (100 km)

Last 24 hours
1
Last 7 days
14
Last 30 days
33

Approximate energy released

≈ 3.8 t TNT

1.58e+10 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 Maximum intensity (MMI): 2,3 ShakeMap

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

49 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 17
  • M3 26
  • M4 6
  • M5 0
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 10
  • 10–20 km 18
  • 20–40 km 9
  • 40–70 km 4
  • 70–150 km 8
  • 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

Sources report different values.
Agency Magnitude Depth Time (UTC) Difference from master Original record
EMSC-CSEM
FOX ISLANDS, ALEUTIAN ISLANDS
 3.9 ml 20.1 km 08:59:29.136 Δt 0.66 sn · 5.73 km · ΔM +0.3 Original record
USGS Earthquake Hazards Program Displayed
115 km SW of Nikolski, Alaska
 3.6 mb 43.0 km 08:59:29.792 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. 06.11.2026 09:40:52 · USGS · update

    depth: 20.1 → 43.01 latitude: 52.152 → 52.1582 longitude: -170.067 → -169.9839 magnitude: 3.9 → 3.6 time: 2026-11-05T08:59:29.135+00:00 → 2026-11-05T08:59:29.792+00:00 location: 119 km SW of Nikolski, Alaska → 115 km SW of Nikolski, Alaska magnitude type: ml → mb

  2. 06.11.2026 09:40:52 · SISTEM · recompute

    depth: 20.1 → 43.01 latitude: 52.152 → 52.1582 longitude: -170.067 → -169.9839 magnitude: 3.9 → 3.6 time: 2026-11-05T08:59:29.135Z → 2026-11-05 08:59:29.792+00:00 magnitude type: ml → mb

  3. 05.11.2026 23:10:18 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  4. 05.11.2026 23:08:07 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  5. 05.11.2026 23:06:03 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  6. 05.11.2026 23:01:52 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  7. 05.11.2026 22:58:43 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  8. 05.11.2026 22:54:39 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  9. 05.11.2026 22:53:33 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  10. 05.11.2026 22:52:34 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  11. 05.11.2026 22:49:28 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  12. 05.11.2026 22:45:25 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  13. 05.11.2026 22:44:24 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  14. 05.11.2026 22:42:17 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  15. 05.11.2026 22:37:57 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  16. 05.11.2026 22:37:00 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  17. 05.11.2026 22:35:51 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  18. 05.11.2026 22:32:50 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  19. 05.11.2026 22:30:49 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  20. 05.11.2026 22:29:36 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  21. 05.11.2026 22:28:37 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  22. 05.11.2026 22:25:26 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  23. 05.11.2026 22:23:21 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  24. 05.11.2026 22:20:13 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  25. 05.11.2026 22:18:03 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  26. 05.11.2026 22:15:51 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  27. 05.11.2026 22:14:50 · EMSC · update

    time: 2026-11-05T08:59:29.136+00:00 → 2026-11-05T08:59:29.135+00:00

  28. 05.11.2026 22:10:42 · SISTEM · recompute

    time: 2026-11-05T08:59:29.136Z → 2026-11-05 08:59:29.135+00:00 source count: 1 → 2 review status: automatic → reviewed confirming sources: emsc → emsc,usgs preferred source: 3 → 4

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