157 km S of Unalaska, Alaska
28 October 2026, 16:54:15 (+03) 2026-10-28 13:54:15 UTC
- Magnitude
- 2.9 ml
- Depth
- 3.5 km
- Coordinates
- 52.4570, -166.5940
- Data consistency
- 58/100
Regional activity (100 km)
- Last 24 hours
- 0
- Last 7 days
- 2
- Last 30 days
- 16
Approximate energy released
≈ 0.3 t TNT
1.41e+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
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
17 earthquakes
By magnitude
- M0 0
- M1 0
- M2 12
- M3 5
- M4 0
- M5 0
- M6 0
- M7 0
- M8+ 0
By depth
- 0–10 km 3
- 10–20 km 6
- 20–40 km 5
- 40–70 km 3
- 70–150 km 0
- 150+ km 0
Largest previous earthquakes within 100 km
Largest earthquakes in the platform catalogue and entries from historical catalogues (with citation).
- M3,8 86 km SSW of Unalaska, Alaska 18.10.2026 · 82 km
- M3,5 119 km ESE of Nikolski, Alaska 24.09.2026 · 51 km
- M3,1 173 km SE of Nikolski, Alaska 16.10.2026 · 64 km
- M2,9 91 km SE of Nikolski, Alaska 17.10.2026 · 93 km
- M2,8 77 km E of Nikolski, Alaska 23.10.2026 · 95 km
- M2,8 154 km ESE of Nikolski, Alaska 16.10.2026 · 16 km
- M2,7 96 km SSW of Unalaska, Alaska 28.10.2026 · 68 km
- M2,7 94 km SSW of Unalaska, Alaska 23.10.2026 · 71 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 |
|---|---|---|---|---|---|
|
USGS Earthquake Hazards Program
Displayed
157 km S of Unalaska, Alaska
|
2.9 ml | 3.5 km | 13:54:15.065 | Δt 0 sn · 0 km · ΔM 0 | Original record |
This value summarises agreement between sources; it is not a measure of scientific accuracy. U.S. Geological Survey (USGS) Earthquake Hazards Program — Public domain (U.S. Government)
Revision history
-
29.10.2026 00:46:35 · USGS · update
depth: 3.8 → 3.5 latitude: 52.458 → 52.457 longitude: -166.59 → -166.594 time: 2026-10-28T13:54:15.349+00:00 → 2026-10-28T13:54:15.065+00:00
-
29.10.2026 00:46:35 · SISTEM · recompute
depth: 3.8 → 3.5 latitude: 52.458 → 52.457 longitude: -166.59 → -166.594 time: 2026-10-28T13:54:15.349Z → 2026-10-28 13:54:15.065+00:00
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