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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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3.3

CENTRAL ALASKA

25 October 2026, 01:35:23 (+03) 2026-10-24 22:35:23 UTC

2 sources: EMSC, USGS ml
Magnitude
3.3 ml
Depth
73.3 km
Coordinates
62.9129, -149.3060
Data consistency
85/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
5
Last 30 days
17

Approximate energy released

≈ 1.3 t TNT

5.62e+9 J

Approximated with the Gutenberg–Richter relation (log E = 1.5 M + 4.8); depends on magnitude type. Gutenberg & Richter (1956).

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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

24 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 16
  • 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 3
  • 40–70 km 3
  • 70–150 km 18
  • 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
CENTRAL ALASKA
3.3 ml 73.3 km 22:35:23.946 Δt 0 sn · 0 km · ΔM 0 Original record
USGS Earthquake Hazards Program
52 km SSW of Cantwell, Alaska
3.3 ml 76.4 km 22:35:24.563 Δt 0.62 sn · 4.72 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. 25.10.2026 03:39:53 · EMSC · update

    depth: 76.4 → 73.3 latitude: 62.944 → 62.9129 longitude: -149.243 → -149.306 time: 2026-10-24T22:35:24.563+00:00 → 2026-10-24T22:35:23.946+00:00

  2. 25.10.2026 03:39:53 · SISTEM · recompute

    depth: 76.4 → 73.3 latitude: 62.944 → 62.9129 longitude: -149.243 → -149.306 time: 2026-10-24T22:35:24.563Z → 2026-10-24 22:35:23.946+00:00

  3. 25.10.2026 01:39:13 · USGS · update

    depth: 73.4 → 76.4 latitude: 62.935 → 62.944 longitude: -149.277 → -149.243 magnitude: 3.2 → 3.3 time: 2026-10-24T22:35:24.358+00:00 → 2026-10-24T22:35:24.563+00:00 location: 53 km SSW of Cantwell, Alaska → 52 km SSW of Cantwell, Alaska

  4. 25.10.2026 01:39:12 · EMSC · update

    depth: 73.4 → 76.4 latitude: 62.935 → 62.944 longitude: -149.277 → -149.243 magnitude: 3.2 → 3.3 time: 2026-10-24T22:35:24.359+00:00 → 2026-10-24T22:35:24.563+00:00

  5. 25.10.2026 01:39:12 · SISTEM · recompute

    depth: 73.4 → 76.4 latitude: 62.935 → 62.944 longitude: -149.277 → -149.243 magnitude: 3.2 → 3.3 time: 2026-10-24T22:35:24.359Z → 2026-10-24 22:35:24.563+00:00

  6. 25.10.2026 01:38:06 · USGS · update

    depth: 74.5 → 73.4 latitude: 62.946 → 62.935 longitude: -149.261 → -149.277 magnitude: 3.3 → 3.2 time: 2026-10-24T22:35:24.584+00:00 → 2026-10-24T22:35:24.358+00:00 location: 52 km SSW of Cantwell, Alaska → 53 km SSW of Cantwell, Alaska

  7. 25.10.2026 01:38:05 · EMSC · update

    latitude: 62.944 → 62.935 longitude: -149.278 → -149.277 time: 2026-10-24T22:35:24.375+00:00 → 2026-10-24T22:35:24.358+00:00

  8. 25.10.2026 01:38:05 · SISTEM · recompute

    latitude: 62.944 → 62.935 longitude: -149.278 → -149.277 time: 2026-10-24T22:35:24.375Z → 2026-10-24 22:35:24.359+00:00

  9. 25.10.2026 01:37:06 · SISTEM · recompute

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

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