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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

256 km WSW of Adak, Alaska

1 November 2026, 06:43:08 (+03) 2026-11-01 03:43:08 UTC

2 sources: EMSC, USGS ml
Did you feel this earthquake?
Magnitude
3.0 ml
Depth
17.6 km
Coordinates
51.2930, 179.7850
Data consistency
90/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
1
Last 30 days
14

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

21 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 12
  • M3 4
  • M4 5
  • M5 0
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 2
  • 10–20 km 8
  • 20–40 km 2
  • 40–70 km 6
  • 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

Agency Magnitude Depth Time (UTC) Difference from master Original record
EMSC-CSEM
RAT ISLANDS, ALEUTIAN ISLANDS
 3.0 ml 17.6 km 03:43:08.225 Δt 0 sn · 0 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
256 km WSW of Adak, Alaska
 3.0 ml 17.6 km 03:43:08.224 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. 04.11.2026 02:11:34 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  2. 04.11.2026 02:09:22 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  3. 04.11.2026 02:08:22 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  4. 04.11.2026 02:07:18 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  5. 04.11.2026 02:03:58 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  6. 04.11.2026 02:02:55 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  7. 04.11.2026 02:00:51 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  8. 04.11.2026 01:59:49 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  9. 04.11.2026 01:58:44 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  10. 04.11.2026 01:57:41 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  11. 04.11.2026 01:55:35 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  12. 04.11.2026 01:53:33 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  13. 04.11.2026 01:52:31 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  14. 04.11.2026 01:46:07 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  15. 04.11.2026 01:45:06 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  16. 04.11.2026 01:44:00 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  17. 04.11.2026 01:40:54 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  18. 04.11.2026 01:38:49 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  19. 04.11.2026 01:37:49 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  20. 04.11.2026 01:36:47 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  21. 04.11.2026 01:28:28 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  22. 04.11.2026 01:24:13 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  23. 04.11.2026 01:20:59 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  24. 04.11.2026 01:15:46 · EMSC · update

    time: 2026-11-01T03:43:08.225+00:00 → 2026-11-01T03:43:08.224+00:00

  25. 04.11.2026 01:13:41 · SISTEM · recompute

    time: 2026-11-01T03:43:08.225Z → 2026-11-01 03:43:08.224+00:00 source count: 1 → 2 review status: automatic → reviewed confirming sources: emsc → emsc,usgs preferred source: 3 → 4

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