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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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3.3

100 km E of Akutan, Alaska

29 October 2026, 13:00:23 (+03) 2026-10-29 10:00:23 UTC

2 sources: EMSC, USGS ml
Did you feel this earthquake?
Magnitude
3.3 ml
Depth
35.0 km
Coordinates
54.0035, -164.2558
Data consistency
87/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
16
Last 30 days
69

Approximate energy released

≈ 1.3 t TNT

5.62e+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 Maximum intensity (MMI): 2,1 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

71 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 41
  • M3 17
  • M4 9
  • M5 4
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 11
  • 10–20 km 26
  • 20–40 km 26
  • 40–70 km 5
  • 70–150 km 3
  • 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
UNIMAK ISLAND REGION, ALASKA
 3.5 ml 27.8 km 10:00:22.019 Δt 1.14 sn · 11.22 km · ΔM +0.2 Original record
USGS Earthquake Hazards Program Displayed
100 km E of Akutan, Alaska
 3.3 ml 35.0 km 10:00:23.160 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. 30.10.2026 08:37:32 · USGS · update

    depth: 27.8 → 35 latitude: 53.903 → 54.0035 longitude: -164.243 → -164.2558 magnitude: 3.5 → 3.3 time: 2026-10-29T10:00:22.018+00:00 → 2026-10-29T10:00:23.160+00:00 location: 103 km ESE of Akutan, Alaska → 100 km E of Akutan, Alaska

  2. 30.10.2026 08:37:32 · SISTEM · recompute

    depth: 27.8 → 35 latitude: 53.903 → 54.0035 longitude: -164.243 → -164.2558 magnitude: 3.5 → 3.3 time: 2026-10-29T10:00:22.018Z → 2026-10-29 10:00:23.160+00:00

  3. 30.10.2026 02:33:57 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  4. 30.10.2026 02:29:47 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  5. 30.10.2026 02:28:48 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  6. 30.10.2026 02:21:32 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  7. 30.10.2026 02:20:31 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  8. 30.10.2026 02:16:18 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  9. 30.10.2026 02:14:07 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  10. 30.10.2026 02:12:07 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  11. 30.10.2026 02:06:56 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  12. 30.10.2026 02:05:54 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  13. 30.10.2026 02:00:44 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  14. 30.10.2026 01:57:42 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  15. 30.10.2026 01:56:33 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  16. 30.10.2026 01:51:27 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  17. 30.10.2026 01:50:25 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  18. 30.10.2026 01:48:11 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  19. 30.10.2026 01:47:10 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  20. 30.10.2026 01:46:04 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  21. 30.10.2026 01:45:06 · SISTEM · recompute

    time: 2026-10-29T10:00:22.019Z → 2026-10-29 10:00:22.018+00:00 source count: 1 → 2 review status: automatic → reviewed confirming sources: emsc → emsc,usgs preferred source: 3 → 4

  22. 30.10.2026 01:45:05 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  23. 30.10.2026 01:44:02 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  24. 30.10.2026 01:43:01 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

  25. 30.10.2026 01:35:38 · EMSC · update

    time: 2026-10-29T10:00:22.019+00:00 → 2026-10-29T10:00:22.018+00:00

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