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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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3.6

18 km E of Susitna North, Alaska

27 October 2026, 20:16:32 (+03) 2026-10-27 17:16:32 UTC

2 sources: EMSC, USGS ml
Did you feel this earthquake?
Magnitude
3.6 ml
Depth
28.3 km
Coordinates
62.1550, -149.4940
Data consistency
90/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
8
Last 30 days
24

Approximate energy released

≈ 3.8 t TNT

1.58e+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?

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): 3,5 Felt reports: 14 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

29 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 20
  • M3 9
  • M4 0
  • M5 0
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 2
  • 10–20 km 1
  • 20–40 km 7
  • 40–70 km 10
  • 70–150 km 9
  • 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
CENTRAL ALASKA
 3.6 ml 28.3 km 17:16:32.394 Δt 0 sn · 0 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
18 km E of Susitna North, Alaska
 3.6 ml 28.3 km 17:16:32.394 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. 28.10.2026 02:08:33 · USGS · update

    depth: 14.5 → 28.3 latitude: 62.156 → 62.155 longitude: -149.535 → -149.494 magnitude: 3.7 → 3.6 time: 2026-10-27T17:16:31.164+00:00 → 2026-10-27T17:16:32.394+00:00 location: 16 km E of Susitna North, Alaska → 18 km E of Susitna North, Alaska review status: automatic → reviewed

  2. 28.10.2026 02:08:33 · SISTEM · recompute

    review status: automatic → reviewed preferred source: 3 → 4

  3. 28.10.2026 02:08:33 · EMSC · update

    depth: 38.1 → 28.3 latitude: 62.1472 → 62.155 longitude: -149.522 → -149.494 magnitude: 3.7 → 3.6 time: 2026-10-27T17:16:32.236+00:00 → 2026-10-27T17:16:32.394+00:00

  4. 28.10.2026 02:08:33 · SISTEM · recompute

    depth: 38.1 → 28.3 latitude: 62.1472 → 62.155 longitude: -149.522 → -149.494 magnitude: 3.7 → 3.6 time: 2026-10-27T17:16:32.236Z → 2026-10-27 17:16:32.394+00:00

  5. 27.10.2026 20:48:41 · EMSC · update

    depth: 14.5 → 38.1 latitude: 62.156 → 62.1472 longitude: -149.535 → -149.522 time: 2026-10-27T17:16:31.165+00:00 → 2026-10-27T17:16:32.236+00:00

  6. 27.10.2026 20:48:41 · SISTEM · recompute

    depth: 14.5 → 38.1 latitude: 62.156 → 62.1472 longitude: -149.535 → -149.522 time: 2026-10-27T17:16:31.165Z → 2026-10-27 17:16:32.236+00:00

  7. 27.10.2026 20:47:42 · EMSC · update

    time: 2026-10-27T17:16:31.165+00:00 → 2026-10-27T17:16:31.164+00:00

  8. 27.10.2026 20:46:39 · EMSC · update

    time: 2026-10-27T17:16:31.165+00:00 → 2026-10-27T17:16:31.164+00:00

  9. 27.10.2026 20:45:33 · EMSC · update

    time: 2026-10-27T17:16:31.165+00:00 → 2026-10-27T17:16:31.164+00:00

  10. 27.10.2026 20:44:24 · EMSC · update

    time: 2026-10-27T17:16:31.165+00:00 → 2026-10-27T17:16:31.164+00:00

  11. 27.10.2026 20:43:10 · EMSC · update

    time: 2026-10-27T17:16:31.165+00:00 → 2026-10-27T17:16:31.164+00:00

  12. 27.10.2026 20:38:40 · EMSC · update

    time: 2026-10-27T17:16:31.165+00:00 → 2026-10-27T17:16:31.164+00:00

  13. 27.10.2026 20:37:36 · EMSC · update

    time: 2026-10-27T17:16:31.165+00:00 → 2026-10-27T17:16:31.164+00:00

  14. 27.10.2026 20:35:31 · EMSC · update

    time: 2026-10-27T17:16:31.165+00:00 → 2026-10-27T17:16:31.164+00:00

  15. 27.10.2026 20:33:08 · EMSC · update

    time: 2026-10-27T17:16:31.165+00:00 → 2026-10-27T17:16:31.164+00:00

  16. 27.10.2026 20:30:56 · EMSC · update

    time: 2026-10-27T17:16:31.165+00:00 → 2026-10-27T17:16:31.164+00:00

  17. 27.10.2026 20:24:29 · EMSC · update

    time: 2026-10-27T17:16:31.165+00:00 → 2026-10-27T17:16:31.164+00:00

  18. 27.10.2026 20:23:27 · EMSC · update

    time: 2026-10-27T17:16:31.165+00:00 → 2026-10-27T17:16:31.164+00:00

  19. 27.10.2026 20:22:18 · USGS · update

    magnitude: 3.6 → 3.7

  20. 27.10.2026 20:22:11 · EMSC · update

    magnitude: 3.6 → 3.7 time: 2026-10-27T17:16:31.165+00:00 → 2026-10-27T17:16:31.164+00:00

  21. 27.10.2026 20:22:11 · SISTEM · recompute

    magnitude: 3.6 → 3.7

  22. 27.10.2026 20:21:04 · USGS · update

    depth: 53.6 → 14.5 latitude: 62.168 → 62.156 longitude: -149.507 → -149.535 magnitude: 3.7 → 3.6 time: 2026-10-27T17:16:32.806+00:00 → 2026-10-27T17:16:31.164+00:00 location: 17 km E of Susitna North, Alaska → 16 km E of Susitna North, Alaska

  23. 27.10.2026 20:21:01 · EMSC · update

    depth: 53.6 → 14.5 latitude: 62.168 → 62.156 longitude: -149.507 → -149.535 magnitude: 3.7 → 3.6 time: 2026-10-27T17:16:32.807+00:00 → 2026-10-27T17:16:31.164+00:00

  24. 27.10.2026 20:21:01 · SISTEM · recompute

    depth: 53.6 → 14.5 latitude: 62.168 → 62.156 longitude: -149.507 → -149.535 magnitude: 3.7 → 3.6 time: 2026-10-27T17:16:32.807Z → 2026-10-27 17:16:31.165+00:00

  25. 27.10.2026 20:19:34 · USGS · update

    depth: 22.6 → 53.6 latitude: 62.174 → 62.168 longitude: -149.545 → -149.507 magnitude: 3.8 → 3.7 time: 2026-10-27T17:16:31.946+00:00 → 2026-10-27T17:16:32.806+00:00 location: 15 km E of Susitna North, Alaska → 17 km E of Susitna North, Alaska

  26. 27.10.2026 20:19:30 · EMSC · update

    depth: 22.6 → 53.6 latitude: 62.174 → 62.168 longitude: -149.545 → -149.507 magnitude: 3.8 → 3.7 time: 2026-10-27T17:16:31.946+00:00 → 2026-10-27T17:16:32.806+00:00

  27. 27.10.2026 20:19:30 · SISTEM · recompute

    depth: 22.6 → 53.6 latitude: 62.174 → 62.168 longitude: -149.545 → -149.507 magnitude: 3.8 → 3.7 time: 2026-10-27T17:16:31.946Z → 2026-10-27 17:16:32.807+00:00

  28. 27.10.2026 20:18:30 · SISTEM · recompute

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

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