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You are offline: the data shown may be out of date.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

ALASKA PENINSULA

11 October 2026, 11:27:06 (+03) 2026-10-11 08:27:06 UTC

2 sources: EMSC, USGS ml
Did you feel this earthquake?
Magnitude
3.4 ml
Depth
155.4 km
Coordinates
58.4265, -155.7482
Data consistency
85/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
1
Last 30 days
8

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

11 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 7
  • M3 4
  • M4 0
  • M5 0
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 3
  • 10–20 km 0
  • 20–40 km 0
  • 40–70 km 0
  • 70–150 km 5
  • 150+ km 3

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
ALASKA PENINSULA
 3.4 ml 155.4 km 08:27:06.043 Δt 0 sn · 0 km · ΔM 0 Original record
USGS Earthquake Hazards Program
61 km ESE of King Salmon, Alaska
 3.4 ml 152.8 km 08:27:06.559 Δt 0.52 sn · 4.85 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. 11.10.2026 14:39:52 · EMSC · update

    depth: 152.8 → 155.4 latitude: 58.459 → 58.4265 longitude: -155.693 → -155.7482 time: 2026-10-11T08:27:06.559+00:00 → 2026-10-11T08:27:06.043+00:00

  2. 11.10.2026 14:39:52 · SISTEM · recompute

    depth: 152.8 → 155.4 latitude: 58.459 → 58.4265 longitude: -155.693 → -155.7482 time: 2026-10-11T08:27:06.559Z → 2026-10-11 08:27:06.043+00:00

  3. 11.10.2026 11:33:07 · EMSC · update

    magnitude: 3.3 → 3.4

  4. 11.10.2026 11:33:07 · SISTEM · recompute

    magnitude: 3.3 → 3.4

  5. 11.10.2026 11:32:07 · USGS · update

    magnitude: 3.1 → 3.4

  6. 11.10.2026 11:32:01 · EMSC · update

    magnitude: 3.1 → 3.3

  7. 11.10.2026 11:32:01 · SISTEM · recompute

    magnitude: 3.1 → 3.3

  8. 11.10.2026 11:31:05 · USGS · update

    depth: 154.1 → 152.8 latitude: 58.425 → 58.459 longitude: -155.641 → -155.693 magnitude: 3 → 3.1 time: 2026-10-11T08:27:06.519+00:00 → 2026-10-11T08:27:06.559+00:00 location: 66 km ESE of King Salmon, Alaska → 61 km ESE of King Salmon, Alaska

  9. 11.10.2026 11:31:00 · EMSC · update

    depth: 154.1 → 152.8 latitude: 58.425 → 58.459 longitude: -155.641 → -155.693 magnitude: 3 → 3.1 time: 2026-10-11T08:27:06.519+00:00 → 2026-10-11T08:27:06.559+00:00

  10. 11.10.2026 11:31:00 · SISTEM · recompute

    depth: 154.1 → 152.8 latitude: 58.425 → 58.459 longitude: -155.641 → -155.693 magnitude: 3 → 3.1 time: 2026-10-11T08:27:06.519Z → 2026-10-11 08:27:06.559+00:00

  11. 11.10.2026 11:29:57 · USGS · update

    depth: 151.5 → 154.1 latitude: 58.423 → 58.425 longitude: -155.715 → -155.641 magnitude: 2.7 → 3 time: 2026-10-11T08:27:06.718+00:00 → 2026-10-11T08:27:06.519+00:00 location: 62 km ESE of King Salmon, Alaska → 66 km ESE of King Salmon, Alaska

  12. 11.10.2026 11:29:53 · SISTEM · recompute

    depth: 151.5 → 154.1 latitude: 58.423 → 58.425 longitude: -155.715 → -155.641 magnitude: 2.7 → 3 time: 2026-10-11T08:27:06.718Z → 2026-10-11 08:27:06.519+00:00 source count: 1 → 2 confirming sources: usgs → emsc,usgs preferred source: 4 → 3

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