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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

52 km E of Pedro Bay, Alaska

19 October 2026, 11:03:46 (+03) 2026-10-19 08:03:46 UTC

2 sources: EMSC, USGS ml
Did you feel this earthquake?
Magnitude
3.5 ml
Depth
125.5 km
Coordinates
59.8230, -153.1750
Data consistency
90/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
10
Last 30 days
44

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

59 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 51
  • M3 8
  • M4 0
  • M5 0
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 0
  • 10–20 km 0
  • 20–40 km 0
  • 40–70 km 7
  • 70–150 km 50
  • 150+ km 2

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
SOUTHERN ALASKA
 3.5 ml 125.5 km 08:03:46.748 Δt 0 sn · 0 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
52 km E of Pedro Bay, Alaska
 3.5 ml 125.5 km 08:03:46.748 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. 22.10.2026 04:23:14 · USGS · update

    depth: 125.8 → 125.5 latitude: 59.821 → 59.823 longitude: -153.177 → -153.175 time: 2026-10-19T08:03:46.713+00:00 → 2026-10-19T08:03:46.748+00:00 review status: automatic → reviewed

  2. 22.10.2026 04:23:14 · SISTEM · recompute

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

  3. 22.10.2026 04:23:13 · EMSC · update

    depth: 127.9 → 125.5 latitude: 59.8385 → 59.823 longitude: -153.2787 → -153.175 time: 2026-10-19T08:03:46.376+00:00 → 2026-10-19T08:03:46.748+00:00

  4. 22.10.2026 04:23:13 · SISTEM · recompute

    depth: 127.9 → 125.5 latitude: 59.8385 → 59.823 longitude: -153.2787 → -153.175 time: 2026-10-19T08:03:46.376Z → 2026-10-19 08:03:46.748+00:00

  5. 20.10.2026 10:56:50 · EMSC · update

    depth: 125.8 → 127.9 latitude: 59.821 → 59.8385 longitude: -153.177 → -153.2787 time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.376+00:00

  6. 20.10.2026 10:56:50 · SISTEM · recompute

    depth: 125.8 → 127.9 latitude: 59.821 → 59.8385 longitude: -153.177 → -153.2787 time: 2026-10-19T08:03:46.714Z → 2026-10-19 08:03:46.376+00:00

  7. 19.10.2026 12:05:24 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  8. 19.10.2026 12:02:13 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  9. 19.10.2026 12:01:12 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  10. 19.10.2026 11:59:05 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  11. 19.10.2026 11:57:58 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  12. 19.10.2026 11:56:59 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  13. 19.10.2026 11:55:56 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  14. 19.10.2026 11:53:53 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  15. 19.10.2026 11:52:48 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  16. 19.10.2026 11:51:43 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  17. 19.10.2026 11:50:41 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  18. 19.10.2026 11:49:40 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  19. 19.10.2026 11:44:31 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  20. 19.10.2026 11:41:27 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  21. 19.10.2026 11:40:25 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  22. 19.10.2026 11:38:10 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  23. 19.10.2026 11:35:00 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  24. 19.10.2026 11:33:58 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  25. 19.10.2026 11:31:52 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  26. 19.10.2026 11:30:49 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  27. 19.10.2026 11:29:50 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  28. 19.10.2026 11:26:44 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  29. 19.10.2026 11:24:38 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  30. 19.10.2026 11:22:27 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  31. 19.10.2026 11:21:27 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  32. 19.10.2026 11:19:22 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  33. 19.10.2026 11:16:16 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  34. 19.10.2026 11:15:14 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  35. 19.10.2026 11:13:11 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  36. 19.10.2026 11:09:57 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  37. 19.10.2026 11:08:52 · EMSC · update

    time: 2026-10-19T08:03:46.714+00:00 → 2026-10-19T08:03:46.713+00:00

  38. 19.10.2026 11:07:53 · USGS · update

    depth: 125.7 → 125.8 latitude: 59.823 → 59.821 longitude: -153.201 → -153.177 magnitude: 3.3 → 3.5 time: 2026-10-19T08:03:46.721+00:00 → 2026-10-19T08:03:46.713+00:00 location: 50 km E of Pedro Bay, Alaska → 52 km E of Pedro Bay, Alaska

  39. 19.10.2026 11:07:52 · EMSC · update

    depth: 125.7 → 125.8 latitude: 59.823 → 59.821 longitude: -153.201 → -153.177 magnitude: 3.3 → 3.5 time: 2026-10-19T08:03:46.721+00:00 → 2026-10-19T08:03:46.713+00:00

  40. 19.10.2026 11:07:52 · SISTEM · recompute

    depth: 125.7 → 125.8 latitude: 59.823 → 59.821 longitude: -153.201 → -153.177 magnitude: 3.3 → 3.5 time: 2026-10-19T08:03:46.721Z → 2026-10-19 08:03:46.714+00:00

  41. 19.10.2026 11:06:50 · USGS · update

    depth: 126.7 → 125.7 latitude: 59.805 → 59.823 longitude: -153.231 → -153.201 magnitude: 3.1 → 3.3 time: 2026-10-19T08:03:46.610+00:00 → 2026-10-19T08:03:46.721+00:00 location: 49 km E of Pedro Bay, Alaska → 50 km E of Pedro Bay, Alaska

  42. 19.10.2026 11:06:48 · EMSC · update

    depth: 126.7 → 125.7 latitude: 59.805 → 59.823 longitude: -153.231 → -153.201 magnitude: 3 → 3.3 time: 2026-10-19T08:03:46.611+00:00 → 2026-10-19T08:03:46.721+00:00

  43. 19.10.2026 11:06:48 · SISTEM · recompute

    depth: 126.7 → 125.7 latitude: 59.805 → 59.823 longitude: -153.231 → -153.201 magnitude: 3 → 3.3 time: 2026-10-19T08:03:46.611Z → 2026-10-19 08:03:46.721+00:00

  44. 19.10.2026 11:05:48 · SISTEM · recompute

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

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