146 km WSW of Nikolski, Alaska
21 September 2026, 02:43:10 (+03) 2026-09-20 23:43:10 UTC
- Magnitude
- 3.1 ml
- Depth
- 51.3 km
- Coordinates
- 52.4786, -170.8962
- Data consistency
- 58/100
Regional activity (100 km)
- Last 24 hours
- 1
- Last 7 days
- 12
- Last 30 days
- 18
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).
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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
29 earthquakes
By magnitude
- M0 0
- M1 0
- M2 8
- M3 19
- M4 2
- M5 0
- M6 0
- M7 0
- M8+ 0
By depth
- 0–10 km 5
- 10–20 km 6
- 20–40 km 7
- 40–70 km 3
- 70–150 km 8
- 150+ km 0
Largest previous earthquakes within 100 km
Largest earthquakes in the platform catalogue and entries from historical catalogues (with citation).
- M4,0 166 km SW of Nikolski, Alaska 19.09.2026 · 51 km
- M3,7 159 km WSW of Nikolski, Alaska 20.09.2026 · 16 km
- M3,3 172 km SW of Nikolski, Alaska 20.09.2026 · 46 km
- M3,2 169 km WSW of Nikolski, Alaska 20.09.2026 · 26 km
- M3,2 166 km WSW of Nikolski, Alaska 19.09.2026 · 20 km
- M2,9 170 km WSW of Nikolski, Alaska 21.09.2026 · 30 km
- M2,7 79 km SW of Nikolski, Alaska 20.09.2026 · 74 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
146 km WSW of Nikolski, Alaska
|
3.1 ml | 51.3 km | 23:43:10.491 | 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
-
26.09.2026 05:47:40 · USGS · update
depth: 51 → 51.3 latitude: 52.449 → 52.4786 longitude: -170.814 → -170.8962 magnitude: 3 → 3.1 time: 2026-09-20T23:43:10.857+00:00 → 2026-09-20T23:43:10.491+00:00 location: 142 km WSW of Nikolski, Alaska → 146 km WSW of Nikolski, Alaska
-
26.09.2026 05:47:40 · SISTEM · recompute
depth: 51 → 51.3 latitude: 52.449 → 52.4786 longitude: -170.814 → -170.8962 magnitude: 3 → 3.1 time: 2026-09-20T23:43:10.857Z → 2026-09-20 23:43:10.491+00:00
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