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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

86 km SE of Perryville, Alaska

16 October 2026, 05:12:11 (+03) 2026-10-16 02:12:11 UTC

2 sources: EMSC, USGS ml
Did you feel this earthquake?
Magnitude
3.4 ml
Depth
7.3 km
Coordinates
55.3700, -158.1530
Data consistency
90/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
1
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

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

16 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 10
  • M3 6
  • M4 0
  • M5 0
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 6
  • 10–20 km 4
  • 20–40 km 4
  • 40–70 km 2
  • 70–150 km 0
  • 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
ALASKA PENINSULA
 3.4 ml 7.3 km 02:12:11.925 Δt 0 sn · 0 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
86 km SE of Perryville, Alaska
 3.4 ml 7.3 km 02:12:11.925 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. 16.10.2026 23:15:43 · EMSC · update

    depth: 35 → 7.3 latitude: 55.395 → 55.37 longitude: -158.1185 → -158.153 time: 2026-10-16T02:12:14.615+00:00 → 2026-10-16T02:12:11.925+00:00

  2. 16.10.2026 23:15:33 · USGS · update

    depth: 5 → 7.3 latitude: 55.335 → 55.37 longitude: -158.082 → -158.153 time: 2026-10-16T02:12:10.856+00:00 → 2026-10-16T02:12:11.925+00:00 location: 92 km SE of Perryville, Alaska → 86 km SE of Perryville, Alaska review status: automatic → reviewed

  3. 16.10.2026 23:15:33 · SISTEM · recompute

    depth: 35 → 7.3 latitude: 55.395 → 55.37 longitude: -158.1185 → -158.153 time: 2026-10-16T02:12:14.615Z → 2026-10-16 02:12:11.925+00:00 review status: automatic → reviewed preferred source: 3 → 4

  4. 16.10.2026 21:05:20 · SISTEM · recompute

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

  5. 16.10.2026 07:09:05 · EMSC · update

    depth: 5 → 35 latitude: 55.335 → 55.395 longitude: -158.082 → -158.1185 time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:14.615+00:00

  6. 16.10.2026 07:09:05 · SISTEM · recompute

    depth: 5 → 35 latitude: 55.335 → 55.395 longitude: -158.082 → -158.1185 time: 2026-10-16T02:12:10.857Z → 2026-10-16 02:12:14.615+00:00

  7. 16.10.2026 06:23:02 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  8. 16.10.2026 06:21:59 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  9. 16.10.2026 06:16:54 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  10. 16.10.2026 06:15:49 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  11. 16.10.2026 06:13:45 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  12. 16.10.2026 06:10:34 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  13. 16.10.2026 06:08:31 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  14. 16.10.2026 06:07:31 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  15. 16.10.2026 06:03:17 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  16. 16.10.2026 05:59:01 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  17. 16.10.2026 05:53:50 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  18. 16.10.2026 05:52:46 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  19. 16.10.2026 05:51:45 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  20. 16.10.2026 05:50:40 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  21. 16.10.2026 05:47:40 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  22. 16.10.2026 05:46:38 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  23. 16.10.2026 05:44:31 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  24. 16.10.2026 05:36:04 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  25. 16.10.2026 05:34:00 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  26. 16.10.2026 05:30:52 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  27. 16.10.2026 05:29:57 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  28. 16.10.2026 05:24:29 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  29. 16.10.2026 05:23:26 · EMSC · update

    time: 2026-10-16T02:12:10.857+00:00 → 2026-10-16T02:12:10.856+00:00

  30. 16.10.2026 05:22:22 · EMSC · update

    latitude: 55.336 → 55.335 longitude: -158.081 → -158.082 magnitude: 3.3 → 3.4 time: 2026-10-16T02:12:10.861+00:00 → 2026-10-16T02:12:10.856+00:00

  31. 16.10.2026 05:22:22 · SISTEM · recompute

    latitude: 55.336 → 55.335 longitude: -158.081 → -158.082 magnitude: 3.3 → 3.4 time: 2026-10-16T02:12:10.861Z → 2026-10-16 02:12:10.857+00:00

  32. 16.10.2026 05:21:20 · EMSC · update

    time: 2026-10-16T02:12:10.861+00:00 → 2026-10-16T02:12:10.860+00:00

  33. 16.10.2026 05:15:58 · EMSC · update

    time: 2026-10-16T02:12:10.861+00:00 → 2026-10-16T02:12:10.860+00:00

  34. 16.10.2026 05:14:57 · EMSC · update

    longitude: -158.077 → -158.081 time: 2026-10-16T02:12:10.830+00:00 → 2026-10-16T02:12:10.860+00:00

  35. 16.10.2026 05:14:57 · SISTEM · recompute

    longitude: -158.077 → -158.081 time: 2026-10-16T02:12:10.830Z → 2026-10-16 02:12:10.861+00:00

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