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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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3.4

KODIAK ISLAND REGION, ALASKA

9 November 2026, 20:50:55 (+03) 2026-11-09 17:50:55 UTC

2 sources: EMSC, USGS ml
Did you feel this earthquake?
Magnitude
3.4 ml
Depth
49.3 km
Coordinates
57.4034, -153.8817
Data consistency
85/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
4
Last 30 days
10

Approximate energy released

≈ 1.9 t TNT

7.94e+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): 3,2 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

13 earthquakes

By magnitude

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

By depth

  • 0–10 km 0
  • 10–20 km 0
  • 20–40 km 3
  • 40–70 km 9
  • 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).

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 Displayed
KODIAK ISLAND REGION, ALASKA
 3.4 ml 49.3 km 17:50:55.346 Δt 0 sn · 0 km · ΔM 0 Original record
USGS Earthquake Hazards Program
15 km SSE of Larsen Bay, Alaska
 3.4 ml 23.5 km 17:50:55.148 Δt 0.2 sn · 1.81 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. 09.11.2026 21:15:52 · EMSC · update

    depth: 23.5 → 49.3 latitude: 57.407 → 57.4034 longitude: -153.911 → -153.8817 time: 2026-11-09T17:50:55.149+00:00 → 2026-11-09T17:50:55.346+00:00

  2. 09.11.2026 21:15:52 · SISTEM · recompute

    depth: 23.5 → 49.3 latitude: 57.407 → 57.4034 longitude: -153.911 → -153.8817 time: 2026-11-09T17:50:55.149Z → 2026-11-09 17:50:55.346+00:00

  3. 09.11.2026 21:13:50 · EMSC · update

    time: 2026-11-09T17:50:55.149+00:00 → 2026-11-09T17:50:55.148+00:00

  4. 09.11.2026 21:10:38 · EMSC · update

    time: 2026-11-09T17:50:55.149+00:00 → 2026-11-09T17:50:55.148+00:00

  5. 09.11.2026 21:09:37 · EMSC · update

    time: 2026-11-09T17:50:55.149+00:00 → 2026-11-09T17:50:55.148+00:00

  6. 09.11.2026 21:08:35 · EMSC · update

    time: 2026-11-09T17:50:55.149+00:00 → 2026-11-09T17:50:55.148+00:00

  7. 09.11.2026 21:07:36 · EMSC · update

    time: 2026-11-09T17:50:55.149+00:00 → 2026-11-09T17:50:55.148+00:00

  8. 09.11.2026 21:06:32 · EMSC · update

    time: 2026-11-09T17:50:55.149+00:00 → 2026-11-09T17:50:55.148+00:00

  9. 09.11.2026 21:01:16 · EMSC · update

    time: 2026-11-09T17:50:55.149+00:00 → 2026-11-09T17:50:55.148+00:00

  10. 09.11.2026 21:00:11 · EMSC · update

    time: 2026-11-09T17:50:55.149+00:00 → 2026-11-09T17:50:55.148+00:00

  11. 09.11.2026 20:58:13 · EMSC · update

    time: 2026-11-09T17:50:55.149+00:00 → 2026-11-09T17:50:55.148+00:00

  12. 09.11.2026 20:56:07 · USGS · update

    depth: 23.4 → 23.5 latitude: 57.409 → 57.407 longitude: -153.914 → -153.911 time: 2026-11-09T17:50:55.169+00:00 → 2026-11-09T17:50:55.148+00:00

  13. 09.11.2026 20:56:06 · EMSC · update

    depth: 23.4 → 23.5 latitude: 57.409 → 57.407 longitude: -153.914 → -153.911 time: 2026-11-09T17:50:55.170+00:00 → 2026-11-09T17:50:55.148+00:00

  14. 09.11.2026 20:56:06 · SISTEM · recompute

    depth: 23.4 → 23.5 latitude: 57.409 → 57.407 longitude: -153.914 → -153.911 time: 2026-11-09T17:50:55.170Z → 2026-11-09 17:50:55.149+00:00

  15. 09.11.2026 20:54:56 · EMSC · update

    time: 2026-11-09T17:50:55.170+00:00 → 2026-11-09T17:50:55.169+00:00

  16. 09.11.2026 20:53:54 · USGS · update

    depth: 37.2 → 23.4 latitude: 57.417 → 57.409 longitude: -153.848 → -153.914 magnitude: 3.5 → 3.4 time: 2026-11-09T17:50:55.613+00:00 → 2026-11-09T17:50:55.169+00:00

  17. 09.11.2026 20:53:53 · EMSC · update

    depth: 37.2 → 23.4 latitude: 57.417 → 57.409 longitude: -153.848 → -153.914 magnitude: 3.5 → 3.4 time: 2026-11-09T17:50:55.613+00:00 → 2026-11-09T17:50:55.169+00:00

  18. 09.11.2026 20:53:53 · SISTEM · recompute

    depth: 37.2 → 23.4 latitude: 57.417 → 57.409 longitude: -153.848 → -153.914 magnitude: 3.5 → 3.4 time: 2026-11-09T17:50:55.613Z → 2026-11-09 17:50:55.170+00:00

  19. 09.11.2026 20:52:54 · SISTEM · recompute

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

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