Skip to content
You are offline: the data shown may be out of date.

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.

Back to map
3.4

30 km SSE of Skwentna, Alaska

4 November 2026, 06:17:35 (+03) 2026-11-04 03:17:35 UTC

2 sources: EMSC, USGS ml
Did you feel this earthquake?
Magnitude
3.4 ml
Depth
83.0 km
Coordinates
61.7410, -151.1720
Data consistency
89/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
8
Last 30 days
27

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

33 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 24
  • M3 9
  • M4 0
  • M5 0
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 1
  • 10–20 km 1
  • 20–40 km 3
  • 40–70 km 11
  • 70–150 km 17
  • 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
SOUTHERN ALASKA
 3.4 ml 84.0 km 03:17:34.791 Δt 0.58 sn · 7.43 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
30 km SSE of Skwentna, Alaska
 3.4 ml 83.0 km 03:17:35.367 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. 09.11.2026 01:23:08 · USGS · update

    depth: 83.1 → 83 latitude: 61.733 → 61.741 longitude: -151.161 → -151.172 time: 2026-11-04T03:17:35.366+00:00 → 2026-11-04T03:17:35.367+00:00 location: 31 km SSE of Skwentna, Alaska → 30 km SSE of Skwentna, Alaska review status: automatic → reviewed

  2. 09.11.2026 01:23:08 · SISTEM · recompute

    depth: 84 → 83 latitude: 61.7843 → 61.741 longitude: -151.2789 → -151.172 time: 2026-11-04T03:17:34.791Z → 2026-11-04 03:17:35.367+00:00 review status: automatic → reviewed preferred source: 3 → 4

  3. 04.11.2026 08:02:17 · EMSC · update

    depth: 83.1 → 84 latitude: 61.733 → 61.7843 longitude: -151.161 → -151.2789 time: 2026-11-04T03:17:35.366+00:00 → 2026-11-04T03:17:34.791+00:00

  4. 04.11.2026 08:02:17 · SISTEM · recompute

    depth: 83.1 → 84 latitude: 61.733 → 61.7843 longitude: -151.161 → -151.2789 time: 2026-11-04T03:17:35.366Z → 2026-11-04 03:17:34.791+00:00

  5. 04.11.2026 06:23:00 · USGS · update

    magnitude: 3.3 → 3.4

  6. 04.11.2026 06:22:59 · EMSC · update

    magnitude: 3.3 → 3.4

  7. 04.11.2026 06:22:59 · SISTEM · recompute

    magnitude: 3.3 → 3.4

  8. 04.11.2026 06:21:59 · USGS · update

    latitude: 61.739 → 61.733 longitude: -151.186 → -151.161 time: 2026-11-04T03:17:35.372+00:00 → 2026-11-04T03:17:35.366+00:00 location: 30 km SSE of Skwentna, Alaska → 31 km SSE of Skwentna, Alaska

  9. 04.11.2026 06:21:58 · EMSC · update

    latitude: 61.739 → 61.733 longitude: -151.186 → -151.161 time: 2026-11-04T03:17:35.372+00:00 → 2026-11-04T03:17:35.366+00:00

  10. 04.11.2026 06:21:58 · SISTEM · recompute

    latitude: 61.739 → 61.733 longitude: -151.186 → -151.161 time: 2026-11-04T03:17:35.372Z → 2026-11-04 03:17:35.366+00:00

  11. 04.11.2026 06:20:57 · USGS · update

    depth: 84.7 → 83.1 latitude: 61.745 → 61.739 longitude: -151.182 → -151.186 magnitude: 3.2 → 3.3 time: 2026-11-04T03:17:35.077+00:00 → 2026-11-04T03:17:35.372+00:00 location: 29 km SSE of Skwentna, Alaska → 30 km SSE of Skwentna, Alaska

  12. 04.11.2026 06:20:55 · EMSC · update

    depth: 84.7 → 83.1 latitude: 61.745 → 61.739 longitude: -151.182 → -151.186 magnitude: 3.2 → 3.3 time: 2026-11-04T03:17:35.077+00:00 → 2026-11-04T03:17:35.372+00:00

  13. 04.11.2026 06:20:55 · SISTEM · recompute

    depth: 84.7 → 83.1 latitude: 61.745 → 61.739 longitude: -151.182 → -151.186 magnitude: 3.2 → 3.3 time: 2026-11-04T03:17:35.077Z → 2026-11-04 03:17:35.372+00:00

  14. 04.11.2026 06:19:54 · USGS · update

    depth: 82.8 → 84.7 latitude: 61.75 → 61.745 longitude: -151.179 → -151.182 magnitude: 3.1 → 3.2 time: 2026-11-04T03:17:35.212+00:00 → 2026-11-04T03:17:35.077+00:00

  15. 04.11.2026 06:19:53 · EMSC · update

    depth: 82.8 → 84.7 latitude: 61.75 → 61.745 longitude: -151.179 → -151.182 magnitude: 3.1 → 3.2 time: 2026-11-04T03:17:35.213+00:00 → 2026-11-04T03:17:35.077+00:00

  16. 04.11.2026 06:19:53 · SISTEM · recompute

    depth: 82.8 → 84.7 latitude: 61.75 → 61.745 longitude: -151.179 → -151.182 magnitude: 3.1 → 3.2 time: 2026-11-04T03:17:35.213Z → 2026-11-04 03:17:35.077+00:00

  17. 04.11.2026 06:18:54 · SISTEM · recompute

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

This platform is provided for information and data visualisation purposes. Follow the announcements of the competent authorities for official emergency warnings.