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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

5 km N of Nikiski, Alaska

16 October 2026, 03:04:22 (+03) 2026-10-16 00:04:22 UTC

2 sources: EMSC, USGS ml
Did you feel this earthquake?
Magnitude
3.1 ml
Depth
67.5 km
Coordinates
60.7420, -151.2710
Data consistency
90/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
13
Last 30 days
39

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 Felt reports: 1

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

42 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 30
  • M3 11
  • M4 1
  • M5 0
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 0
  • 10–20 km 0
  • 20–40 km 2
  • 40–70 km 17
  • 70–150 km 23
  • 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
KENAI PENINSULA, ALASKA
 3.1 ml 67.5 km 00:04:22.267 Δt 0 sn · 0 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
5 km N of Nikiski, Alaska
 3.1 ml 67.5 km 00:04:22.267 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. 16.10.2026 22:51:51 · EMSC · update

    depth: 64.5 → 67.5 latitude: 60.7391 → 60.742 longitude: -151.3414 → -151.271 time: 2026-10-16T00:04:22.208+00:00 → 2026-10-16T00:04:22.267+00:00

  2. 16.10.2026 22:51:34 · USGS · update

    depth: 65.5 → 67.5 latitude: 60.745 → 60.742 longitude: -151.267 → -151.271 time: 2026-10-16T00:04:22.449+00:00 → 2026-10-16T00:04:22.267+00:00 location: 6 km N of Nikiski, Alaska → 5 km N of Nikiski, Alaska review status: automatic → reviewed

  3. 16.10.2026 22:51:34 · SISTEM · recompute

    depth: 64.5 → 67.5 latitude: 60.7391 → 60.742 longitude: -151.3414 → -151.271 time: 2026-10-16T00:04:22.208Z → 2026-10-16 00:04:22.267+00:00 review status: automatic → reviewed preferred source: 3 → 4

  4. 16.10.2026 21:05:20 · SISTEM · recompute

    source count: 1 → 2 confirming sources: emsc → emsc,usgs

  5. 16.10.2026 06:15:49 · EMSC · update

    depth: 65.5 → 64.5 latitude: 60.745 → 60.7391 longitude: -151.267 → -151.3414 time: 2026-10-16T00:04:22.450+00:00 → 2026-10-16T00:04:22.208+00:00

  6. 16.10.2026 06:15:49 · SISTEM · recompute

    depth: 65.5 → 64.5 latitude: 60.745 → 60.7391 longitude: -151.267 → -151.3414 time: 2026-10-16T00:04:22.450Z → 2026-10-16 00:04:22.208+00:00

  7. 16.10.2026 04:02:04 · EMSC · update

    time: 2026-10-16T00:04:22.450+00:00 → 2026-10-16T00:04:22.449+00:00

  8. 16.10.2026 03:56:56 · EMSC · update

    time: 2026-10-16T00:04:22.450+00:00 → 2026-10-16T00:04:22.449+00:00

  9. 16.10.2026 03:54:50 · EMSC · update

    time: 2026-10-16T00:04:22.450+00:00 → 2026-10-16T00:04:22.449+00:00

  10. 16.10.2026 03:53:44 · EMSC · update

    time: 2026-10-16T00:04:22.450+00:00 → 2026-10-16T00:04:22.449+00:00

  11. 16.10.2026 03:50:31 · EMSC · update

    time: 2026-10-16T00:04:22.450+00:00 → 2026-10-16T00:04:22.449+00:00

  12. 16.10.2026 03:49:31 · EMSC · update

    time: 2026-10-16T00:04:22.450+00:00 → 2026-10-16T00:04:22.449+00:00

  13. 16.10.2026 03:46:16 · EMSC · update

    time: 2026-10-16T00:04:22.450+00:00 → 2026-10-16T00:04:22.449+00:00

  14. 16.10.2026 03:43:01 · EMSC · update

    time: 2026-10-16T00:04:22.450+00:00 → 2026-10-16T00:04:22.449+00:00

  15. 16.10.2026 03:39:50 · EMSC · update

    time: 2026-10-16T00:04:22.450+00:00 → 2026-10-16T00:04:22.449+00:00

  16. 16.10.2026 03:37:41 · EMSC · update

    time: 2026-10-16T00:04:22.450+00:00 → 2026-10-16T00:04:22.449+00:00

  17. 16.10.2026 03:33:31 · EMSC · update

    time: 2026-10-16T00:04:22.450+00:00 → 2026-10-16T00:04:22.449+00:00

  18. 16.10.2026 03:31:25 · EMSC · update

    time: 2026-10-16T00:04:22.450+00:00 → 2026-10-16T00:04:22.449+00:00

  19. 16.10.2026 03:30:21 · EMSC · update

    time: 2026-10-16T00:04:22.450+00:00 → 2026-10-16T00:04:22.449+00:00

  20. 16.10.2026 03:25:11 · EMSC · update

    time: 2026-10-16T00:04:22.450+00:00 → 2026-10-16T00:04:22.449+00:00

  21. 16.10.2026 03:22:55 · EMSC · update

    time: 2026-10-16T00:04:22.450+00:00 → 2026-10-16T00:04:22.449+00:00

  22. 16.10.2026 03:16:33 · EMSC · update

    time: 2026-10-16T00:04:22.450+00:00 → 2026-10-16T00:04:22.449+00:00

  23. 16.10.2026 03:12:22 · EMSC · update

    time: 2026-10-16T00:04:22.450+00:00 → 2026-10-16T00:04:22.449+00:00

  24. 16.10.2026 03:09:15 · EMSC · update

    time: 2026-10-16T00:04:22.450+00:00 → 2026-10-16T00:04:22.449+00:00

  25. 16.10.2026 03:08:10 · EMSC · update

    depth: 65.9 → 65.5 longitude: -151.268 → -151.267 magnitude: 3 → 3.1 time: 2026-10-16T00:04:22.416+00:00 → 2026-10-16T00:04:22.449+00:00

  26. 16.10.2026 03:08:10 · SISTEM · recompute

    depth: 65.9 → 65.5 longitude: -151.268 → -151.267 magnitude: 3 → 3.1 time: 2026-10-16T00:04:22.416Z → 2026-10-16 00:04:22.450+00:00

  27. 16.10.2026 03:07:09 · EMSC · update

    depth: 75 → 65.9 latitude: 60.762 → 60.745 longitude: -151.292 → -151.268 magnitude: 3.1 → 3 time: 2026-10-16T00:04:21.808+00:00 → 2026-10-16T00:04:22.416+00:00

  28. 16.10.2026 03:07:09 · SISTEM · recompute

    depth: 75 → 65.9 latitude: 60.762 → 60.745 longitude: -151.292 → -151.268 magnitude: 3.1 → 3 time: 2026-10-16T00:04:21.808Z → 2026-10-16 00:04:22.416+00:00

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