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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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3.0

66 km W of Happy Valley, Alaska

29 October 2026, 01:42:11 (+03) 2026-10-28 22:42:11 UTC

2 sources: EMSC, USGS ml
Did you feel this earthquake?
Magnitude
3.0 ml
Depth
125.4 km
Coordinates
60.0380, -152.9010
Data consistency
90/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
11
Last 30 days
45

Approximate energy released

≈ 0.5 t TNT

2.00e+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 7
  • 70–150 km 51
  • 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
 3.0 ml 126.6 km 22:42:10.878 Δt 0.4 sn · 4.62 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
66 km W of Happy Valley, Alaska
 3.0 ml 125.4 km 22:42:11.273 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. 03.11.2026 22:22:58 · SISTEM · recompute

    depth: 126.6 → 125.4 latitude: 60.0543 → 60.038 longitude: -152.9773 → -152.901 time: 2026-10-28T22:42:10.878Z → 2026-10-28 22:42:11.273+00:00 review status: automatic → reviewed preferred source: 3 → 4

  2. 03.11.2026 22:22:58 · USGS · update

    longitude: -152.905 → -152.901 time: 2026-10-28T22:42:11.267+00:00 → 2026-10-28T22:42:11.273+00:00 review status: automatic → reviewed

  3. 29.10.2026 07:10:44 · EMSC · update

    depth: 125.4 → 126.6 latitude: 60.038 → 60.0543 longitude: -152.905 → -152.9773 time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:10.878+00:00

  4. 29.10.2026 07:10:44 · SISTEM · recompute

    depth: 125.4 → 126.6 latitude: 60.038 → 60.0543 longitude: -152.905 → -152.9773 time: 2026-10-28T22:42:11.268Z → 2026-10-28 22:42:10.878+00:00

  5. 29.10.2026 02:41:45 · EMSC · update

    time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:11.267+00:00

  6. 29.10.2026 02:33:22 · EMSC · update

    time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:11.267+00:00

  7. 29.10.2026 02:32:20 · EMSC · update

    time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:11.267+00:00

  8. 29.10.2026 02:31:19 · EMSC · update

    time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:11.267+00:00

  9. 29.10.2026 02:29:07 · EMSC · update

    time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:11.267+00:00

  10. 29.10.2026 02:25:56 · EMSC · update

    time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:11.267+00:00

  11. 29.10.2026 02:22:45 · EMSC · update

    time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:11.267+00:00

  12. 29.10.2026 02:21:46 · EMSC · update

    time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:11.267+00:00

  13. 29.10.2026 02:19:19 · EMSC · update

    time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:11.267+00:00

  14. 29.10.2026 02:15:57 · EMSC · update

    time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:11.267+00:00

  15. 29.10.2026 02:14:51 · EMSC · update

    time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:11.267+00:00

  16. 29.10.2026 02:11:48 · EMSC · update

    time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:11.267+00:00

  17. 29.10.2026 02:06:08 · EMSC · update

    time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:11.267+00:00

  18. 29.10.2026 02:05:09 · EMSC · update

    time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:11.267+00:00

  19. 29.10.2026 02:02:00 · EMSC · update

    time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:11.267+00:00

  20. 29.10.2026 02:00:59 · EMSC · update

    time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:11.267+00:00

  21. 29.10.2026 01:53:48 · EMSC · update

    time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:11.267+00:00

  22. 29.10.2026 01:51:40 · EMSC · update

    time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:11.267+00:00

  23. 29.10.2026 01:50:37 · EMSC · update

    time: 2026-10-28T22:42:11.268+00:00 → 2026-10-28T22:42:11.267+00:00

  24. 29.10.2026 01:47:36 · USGS · update

    depth: 125 → 125.4 latitude: 60.037 → 60.038 longitude: -152.904 → -152.905 magnitude: 2.9 → 3 time: 2026-10-28T22:42:11.312+00:00 → 2026-10-28T22:42:11.267+00:00

  25. 29.10.2026 01:47:35 · SISTEM · recompute

    depth: 125 → 125.4 latitude: 60.037 → 60.038 longitude: -152.904 → -152.905 magnitude: 2.9 → 3 time: 2026-10-28T22:42:11.312Z → 2026-10-28 22:42:11.268+00:00 source count: 1 → 2 confirming sources: usgs → emsc,usgs preferred source: 4 → 3

  26. 29.10.2026 01:46:33 · USGS · update

    depth: 126 → 125 longitude: -152.928 → -152.904 magnitude: 2.7 → 2.9 time: 2026-10-28T22:42:11.180+00:00 → 2026-10-28T22:42:11.312+00:00 location: 67 km W of Happy Valley, Alaska → 66 km W of Happy Valley, Alaska

  27. 29.10.2026 01:46:33 · SISTEM · recompute

    depth: 126 → 125 longitude: -152.928 → -152.904 magnitude: 2.7 → 2.9 time: 2026-10-28T22:42:11.180Z → 2026-10-28 22:42:11.312+00:00

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