SOUTHERN ALASKA
17 October 2026, 23:11:10 (+03) 2026-10-17 20:11:10 UTC
- Magnitude
- 2.8 ml
- Depth
- 107.1 km
- Coordinates
- 60.0685, -152.7803
- Data consistency
- 85/100
Regional activity (100 km)
- Last 24 hours
- 3
- Last 7 days
- 12
- Last 30 days
- 46
Approximate energy released
≈ 0.2 t TNT
1.00e+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
59 earthquakes
By magnitude
- M0 0
- M1 0
- M2 50
- M3 9
- M4 0
- M5 0
- M6 0
- M7 0
- M8+ 0
By depth
- 0–10 km 0
- 10–20 km 0
- 20–40 km 0
- 40–70 km 7
- 70–150 km 50
- 150+ km 2
Largest previous earthquakes within 100 km
Largest earthquakes in the platform catalogue and entries from historical catalogues (with citation).
- M3,0 SOUTHERN ALASKA 11.10.2026 · 23 km
- M2,8 57 km E of Pedro Bay, Alaska 15.10.2026 · 44 km
- M2,8 SOUTHERN ALASKA 23.09.2026 · 21 km
- M2,7 54 km SSE of Pedro Bay, Alaska 16.10.2026 · 89 km
- M2,7 73 km WNW of Ninilchik, Alaska 12.10.2026 · 32 km
- M2,7 SOUTHERN ALASKA 11.10.2026 · 37 km
- M2,7 SOUTHERN ALASKA 24.09.2026 · 65 km
- M2,6 63 km W of Happy Valley, Alaska 15.10.2026 · 8 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
Displayed
SOUTHERN ALASKA
|
2.8 ml | 107.1 km | 20:11:10.886 | Δt 0 sn · 0 km · ΔM 0 | Original record |
|
USGS Earthquake Hazards Program
58 km WNW of Happy Valley, Alaska
|
2.8 ml | 106.6 km | 20:11:11.204 | Δt 0.32 sn · 1.86 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
-
17.10.2026 23:27:04 · SISTEM · recompute
depth: 106.6 → 107.1 latitude: 60.067 → 60.0685 longitude: -152.747 → -152.7803 time: 2026-10-17T20:11:11.204Z → 2026-10-17 20:11:10.886+00:00 source count: 1 → 2 confirming sources: usgs → emsc,usgs preferred source: 4 → 3
-
17.10.2026 23:22:56 · USGS · update
longitude: -152.75 → -152.747 magnitude: 2.7 → 2.8 time: 2026-10-17T20:11:11.198+00:00 → 2026-10-17T20:11:11.204+00:00
-
17.10.2026 23:22:56 · SISTEM · recompute
longitude: -152.75 → -152.747 magnitude: 2.7 → 2.8 time: 2026-10-17T20:11:11.198Z → 2026-10-17 20:11:11.204+00:00
-
17.10.2026 23:15:43 · USGS · update
magnitude: 2.6 → 2.7
-
17.10.2026 23:15:43 · SISTEM · recompute
magnitude: 2.6 → 2.7
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