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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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3.1

54 km WNW of Anchor Point, Alaska

31 October 2026, 01:53:01 (+03) 2026-10-30 22:53:01 UTC

2 sources: EMSC, USGS ml
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Magnitude
3.1 ml
Depth
102.5 km
Coordinates
59.8890, -152.7850
Data consistency
90/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
10
Last 30 days
46

Approximate energy released

≈ 0.7 t TNT

2.82e+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?

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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

61 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 53
  • 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 8
  • 70–150 km 51
  • 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
 3.1 ml 102.5 km 22:53:01.297 Δt 0 sn · 0 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
54 km WNW of Anchor Point, Alaska
 3.1 ml 102.5 km 22:53:01.297 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. 02.11.2026 09:50:59 · SISTEM · recompute

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

  2. 02.11.2026 09:50:59 · USGS · update

    latitude: 59.892 → 59.889 longitude: -152.778 → -152.785 time: 2026-10-30T22:53:01.409+00:00 → 2026-10-30T22:53:01.297+00:00 review status: automatic → reviewed

  3. 02.11.2026 09:50:58 · SISTEM · recompute

    depth: 104.3 → 102.5 latitude: 59.8785 → 59.889 longitude: -152.8166 → -152.785 time: 2026-10-30T22:53:00.983Z → 2026-10-30 22:53:01.297+00:00

  4. 02.11.2026 09:50:58 · EMSC · update

    depth: 104.3 → 102.5 latitude: 59.8785 → 59.889 longitude: -152.8166 → -152.785 time: 2026-10-30T22:53:00.983+00:00 → 2026-10-30T22:53:01.297+00:00

  5. 31.10.2026 02:58:44 · EMSC · update

    depth: 102.5 → 104.3 latitude: 59.892 → 59.8785 longitude: -152.778 → -152.8166 time: 2026-10-30T22:53:01.409+00:00 → 2026-10-30T22:53:00.983+00:00

  6. 31.10.2026 02:58:44 · SISTEM · recompute

    depth: 102.5 → 104.3 latitude: 59.892 → 59.8785 longitude: -152.778 → -152.8166 time: 2026-10-30T22:53:01.409Z → 2026-10-30 22:53:00.983+00:00

  7. 31.10.2026 01:57:55 · USGS · update

    depth: 103 → 102.5 latitude: 59.887 → 59.892 longitude: -152.789 → -152.778 magnitude: 2.9 → 3.1 time: 2026-10-30T22:53:01.334+00:00 → 2026-10-30T22:53:01.409+00:00 location: 55 km WNW of Anchor Point, Alaska → 54 km WNW of Anchor Point, Alaska

  8. 31.10.2026 01:57:54 · SISTEM · recompute

    depth: 103 → 102.5 latitude: 59.887 → 59.892 longitude: -152.789 → -152.778 magnitude: 2.9 → 3.1 time: 2026-10-30T22:53:01.334Z → 2026-10-30 22:53:01.409+00:00 source count: 1 → 2 confirming sources: usgs → emsc,usgs preferred source: 4 → 3

  9. 31.10.2026 01:56:52 · SISTEM · recompute

    magnitude: 2.8 → 2.9

  10. 31.10.2026 01:56:52 · USGS · update

    magnitude: 2.8 → 2.9

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