100 km SSW of Nikolski, Alaska
31 October 2026, 18:10:11 (+03) 2026-10-31 15:10:11 UTC
- Magnitude
- 3.4 ml
- Depth
- 10.0 km
- Coordinates
- 52.0862, -169.3343
- Data consistency
- 90/100
Regional activity (100 km)
- Last 24 hours
- 1
- Last 7 days
- 14
- Last 30 days
- 36
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).
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Reporting for this earthquake has closed; results are below.
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Community reports
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- Community intensity
- Typical duration
- Farthest report
- felt it
Estimated, close to the MMI scale
Intensity distribution
Provinces with reports
Reported effects
Squares on the map show community reports (~11 km grid; colour = estimated intensity).
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 Maximum intensity (MMI): 1,9 ShakeMap
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
44 earthquakes
By magnitude
- M0 0
- M1 0
- M2 18
- M3 20
- M4 6
- M5 0
- M6 0
- M7 0
- M8+ 0
By depth
- 0–10 km 11
- 10–20 km 18
- 20–40 km 9
- 40–70 km 3
- 70–150 km 3
- 150+ km 0
Largest previous earthquakes within 100 km
Largest earthquakes in the platform catalogue and entries from historical catalogues (with citation).
- M4,7 FOX ISLANDS, ALEUTIAN ISLANDS 15.10.2026 · 24 km
- M4,4 85 km SSW of Nikolski, Alaska 27.09.2026 · 18 km
- M4,0 161 km S of Nikolski, Alaska 19.10.2026 · 89 km
- M4,0 85 km SSW of Nikolski, Alaska 19.09.2026 · 19 km
- M3,8 136 km SW of Nikolski, Alaska 25.09.2026 · 70 km
- M3,7 40 km SSE of Nikolski, Alaska 23.10.2026 · 73 km
- M3,7 123 km SSW of Nikolski, Alaska 19.10.2026 · 25 km
- M3,4 51 km SSW of Nikolski, Alaska 31.10.2026 · 49 km
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
FOX ISLANDS, ALEUTIAN ISLANDS
|
3.4 ml | 12.7 km | 15:10:11.241 | Δt 0.16 sn · 2.38 km · ΔM 0 | Original record |
|
USGS Earthquake Hazards Program
Displayed
100 km SSW of Nikolski, Alaska
|
3.4 ml | 10.0 km | 15:10:11.082 | 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
-
01.11.2026 01:37:52 · EMSC · update
time: 2026-10-31T15:10:11.241+00:00 → 2026-10-31T15:10:11.240+00:00
-
01.11.2026 01:34:46 · EMSC · update
time: 2026-10-31T15:10:11.241+00:00 → 2026-10-31T15:10:11.240+00:00
-
01.11.2026 01:30:35 · EMSC · update
time: 2026-10-31T15:10:11.241+00:00 → 2026-10-31T15:10:11.240+00:00
-
01.11.2026 01:26:23 · EMSC · update
time: 2026-10-31T15:10:11.241+00:00 → 2026-10-31T15:10:11.240+00:00
-
01.11.2026 01:23:15 · EMSC · update
time: 2026-10-31T15:10:11.241+00:00 → 2026-10-31T15:10:11.240+00:00
-
01.11.2026 01:21:07 · EMSC · update
time: 2026-10-31T15:10:11.241+00:00 → 2026-10-31T15:10:11.240+00:00
-
01.11.2026 01:18:56 · EMSC · update
time: 2026-10-31T15:10:11.241+00:00 → 2026-10-31T15:10:11.240+00:00
-
01.11.2026 01:17:54 · EMSC · update
time: 2026-10-31T15:10:11.241+00:00 → 2026-10-31T15:10:11.240+00:00
-
01.11.2026 01:16:51 · EMSC · update
time: 2026-10-31T15:10:11.241+00:00 → 2026-10-31T15:10:11.240+00:00
-
01.11.2026 01:14:43 · EMSC · update
time: 2026-10-31T15:10:11.241+00:00 → 2026-10-31T15:10:11.240+00:00
-
01.11.2026 01:05:04 · USGS · update
depth: 12.7 → 10 latitude: 52.067 → 52.0862 longitude: -169.319 → -169.3343 time: 2026-10-31T15:10:11.240+00:00 → 2026-10-31T15:10:11.082+00:00 location: 101 km SSW of Nikolski, Alaska → 100 km SSW of Nikolski, Alaska
-
01.11.2026 01:05:04 · SISTEM · recompute
depth: 12.7 → 10 latitude: 52.067 → 52.0862 longitude: -169.319 → -169.3343 time: 2026-10-31T15:10:11.240Z → 2026-10-31 15:10:11.082+00:00
-
01.11.2026 01:01:53 · EMSC · update
time: 2026-10-31T15:10:11.241+00:00 → 2026-10-31T15:10:11.240+00:00
-
01.11.2026 00:56:36 · EMSC · update
time: 2026-10-31T15:10:11.241+00:00 → 2026-10-31T15:10:11.240+00:00
-
01.11.2026 00:50:30 · EMSC · update
time: 2026-10-31T15:10:11.241+00:00 → 2026-10-31T15:10:11.240+00:00
-
01.11.2026 00:43:16 · EMSC · update
time: 2026-10-31T15:10:11.241+00:00 → 2026-10-31T15:10:11.240+00:00
-
01.11.2026 00:42:18 · SISTEM · recompute
time: 2026-10-31T15:10:11.241Z → 2026-10-31 15:10:11.240+00:00 source count: 1 → 2 review status: automatic → reviewed confirming sources: emsc → emsc,usgs preferred source: 3 → 4
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