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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

KENAI PENINSULA, ALASKA

17 October 2026, 22:23:28 (+03) 2026-10-17 19:23:28 UTC

2 sources: EMSC, USGS ml
Did you feel this earthquake?
Magnitude
3.1 ml
Depth
34.3 km
Coordinates
59.5239, -150.3655
Data consistency
85/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
4
Last 30 days
10

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

11 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 4
  • M3 6
  • M4 1
  • M5 0
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 0
  • 10–20 km 0
  • 20–40 km 2
  • 40–70 km 7
  • 70–150 km 2
  • 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
KENAI PENINSULA, ALASKA
 3.1 ml 34.3 km 19:23:28.269 Δt 0 sn · 0 km · ΔM 0 Original record
USGS Earthquake Hazards Program
48 km ESE of Halibut Cove, Alaska
 3.1 ml 26.3 km 19:23:28.201 Δt 0.07 sn · 2.08 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. 17.10.2026 22:45:29 · EMSC · update

    depth: 26.3 → 34.3 latitude: 59.511 → 59.5239 longitude: -150.392 → -150.3655 time: 2026-10-17T19:23:28.201+00:00 → 2026-10-17T19:23:28.269+00:00

  2. 17.10.2026 22:45:29 · SISTEM · recompute

    depth: 26.3 → 34.3 latitude: 59.511 → 59.5239 longitude: -150.392 → -150.3655 time: 2026-10-17T19:23:28.201Z → 2026-10-17 19:23:28.269+00:00

  3. 17.10.2026 22:27:44 · USGS · update

    depth: 26.7 → 26.3 latitude: 59.512 → 59.511 longitude: -150.404 → -150.392 time: 2026-10-17T19:23:28.107+00:00 → 2026-10-17T19:23:28.201+00:00 location: 47 km ESE of Halibut Cove, Alaska → 48 km ESE of Halibut Cove, Alaska

  4. 17.10.2026 22:27:42 · EMSC · update

    depth: 26.7 → 26.3 latitude: 59.512 → 59.511 longitude: -150.404 → -150.392 time: 2026-10-17T19:23:28.108+00:00 → 2026-10-17T19:23:28.201+00:00

  5. 17.10.2026 22:27:42 · SISTEM · recompute

    depth: 26.7 → 26.3 latitude: 59.512 → 59.511 longitude: -150.404 → -150.392 time: 2026-10-17T19:23:28.108Z → 2026-10-17 19:23:28.201+00:00

  6. 17.10.2026 22:26:40 · USGS · update

    depth: 26.6 → 26.7 latitude: 59.523 → 59.512 longitude: -150.408 → -150.404 time: 2026-10-17T19:23:28.103+00:00 → 2026-10-17T19:23:28.107+00:00 location: 46 km E of Halibut Cove, Alaska → 47 km ESE of Halibut Cove, Alaska

  7. 17.10.2026 22:26:39 · EMSC · update

    depth: 26.6 → 26.7 latitude: 59.523 → 59.512 longitude: -150.408 → -150.404 time: 2026-10-17T19:23:28.104+00:00 → 2026-10-17T19:23:28.107+00:00

  8. 17.10.2026 22:26:39 · SISTEM · recompute

    depth: 26.6 → 26.7 latitude: 59.523 → 59.512 longitude: -150.408 → -150.404 time: 2026-10-17T19:23:28.104Z → 2026-10-17 19:23:28.108+00:00

  9. 17.10.2026 22:25:41 · SISTEM · recompute

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

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