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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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3.5

123 km S of False Pass, Alaska

26 September 2026, 09:04:48 (+03) 2026-09-26 06:04:48 UTC

2 sources: EMSC, USGS ml
Did you feel this earthquake?
Magnitude
3.5 ml
Depth
11.9 km
Coordinates
53.7540, -163.1140
Data consistency
90/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
20
Last 30 days
48

Approximate energy released

≈ 2.7 t TNT

1.12e+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?

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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

50 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 27
  • M3 15
  • M4 5
  • M5 3
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 13
  • 10–20 km 24
  • 20–40 km 12
  • 40–70 km 0
  • 70–150 km 1
  • 150+ km 0

Largest previous earthquakes within 100 km

Largest earthquakes in the platform catalogue and entries from historical catalogues (with citation).

No records.

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
UNIMAK ISLAND REGION, ALASKA
 3.5 ml 11.9 km 06:04:48.766 Δt 0 sn · 0 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
123 km S of False Pass, Alaska
 3.5 ml 11.9 km 06:04:48.765 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. 26.09.2026 21:40:36 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  2. 26.09.2026 21:29:04 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  3. 26.09.2026 21:26:59 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  4. 26.09.2026 21:25:56 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  5. 26.09.2026 21:24:55 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  6. 26.09.2026 21:22:50 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  7. 26.09.2026 21:18:35 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  8. 26.09.2026 21:16:30 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  9. 26.09.2026 21:10:10 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  10. 26.09.2026 21:08:09 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  11. 26.09.2026 21:02:00 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  12. 26.09.2026 21:00:55 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  13. 26.09.2026 20:58:49 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  14. 26.09.2026 20:57:48 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  15. 26.09.2026 20:54:49 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  16. 26.09.2026 20:52:40 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  17. 26.09.2026 20:51:40 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  18. 26.09.2026 20:45:17 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  19. 26.09.2026 20:44:15 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  20. 26.09.2026 20:43:13 · EMSC · update

    time: 2026-09-26T06:04:48.766+00:00 → 2026-09-26T06:04:48.765+00:00

  21. 26.09.2026 20:42:13 · SISTEM · recompute

    time: 2026-09-26T06:04:48.766Z → 2026-09-26 06:04:48.765+00:00 source count: 1 → 2 review status: automatic → reviewed confirming sources: emsc → emsc,usgs preferred source: 3 → 4

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