14 km SW of Tyonek, Alaska
27 October 2026, 18:54:13 (+03) 2026-10-27 15:54:13 UTC
- Magnitude
- 2.8 ml
- Depth
- 73.4 km
- Coordinates
- 60.9680, -151.2980
- Data consistency
- 90/100
Regional activity (100 km)
- Last 24 hours
- 0
- Last 7 days
- 15
- Last 30 days
- 42
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 Felt reports: 1
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 30
- M3 13
- M4 1
- M5 0
- M6 0
- M7 0
- M8+ 0
By depth
- 0–10 km 0
- 10–20 km 1
- 20–40 km 2
- 40–70 km 21
- 70–150 km 20
- 150+ km 0
Largest previous earthquakes within 100 km
Largest earthquakes in the platform catalogue and entries from historical catalogues (with citation).
- M3,6 2 km NW of Knik, Alaska 16.10.2026 · 100 km
- M3,2 SOUTHERN ALASKA 14.10.2026 · 10 km
- M3,1 5 km N of Nikiski, Alaska 16.10.2026 · 25 km
- M3,1 KENAI PENINSULA, ALASKA 09.10.2026 · 28 km
- M2,9 SOUTHERN ALASKA 25.10.2026 · 67 km
- M2,9 SOUTHERN ALASKA 27.09.2026 · 65 km
- M2,8 14 km NNW of Beluga, Alaska 24.10.2026 · 34 km
- M2,7 KENAI PENINSULA, ALASKA 21.10.2026 · 47 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
SOUTHERN ALASKA
|
2.8 ml | 76.8 km | 15:54:13.190 | Δt 0.41 sn · 5.39 km · ΔM 0 | Original record |
|
USGS Earthquake Hazards Program
Displayed
14 km SW of Tyonek, Alaska
|
2.8 ml | 73.4 km | 15:54:13.595 | 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
-
31.10.2026 00:59:29 · USGS · update
depth: 73.5 → 73.4 latitude: 60.975 → 60.968 longitude: -151.304 → -151.298 time: 2026-10-27T15:54:13.714+00:00 → 2026-10-27T15:54:13.595+00:00 location: 13 km SW of Tyonek, Alaska → 14 km SW of Tyonek, Alaska review status: automatic → reviewed
-
31.10.2026 00:59:29 · SISTEM · recompute
depth: 76.8 → 73.4 latitude: 61.0018 → 60.968 longitude: -151.3691 → -151.298 time: 2026-10-27T15:54:13.190Z → 2026-10-27 15:54:13.595+00:00 review status: automatic → reviewed preferred source: 3 → 4
-
27.10.2026 21:06:40 · SISTEM · recompute
depth: 73.5 → 76.8 latitude: 60.975 → 61.0018 longitude: -151.304 → -151.3691 time: 2026-10-27T15:54:13.714Z → 2026-10-27 15:54:13.190+00:00 source count: 1 → 2 confirming sources: usgs → emsc,usgs preferred source: 4 → 3
-
27.10.2026 19:10:08 · USGS · update
depth: 75.5 → 73.5 latitude: 60.973 → 60.975 longitude: -151.315 → -151.304 time: 2026-10-27T15:54:13.524+00:00 → 2026-10-27T15:54:13.714+00:00 location: 14 km SW of Tyonek, Alaska → 13 km SW of Tyonek, Alaska
-
27.10.2026 19:10:08 · SISTEM · recompute
depth: 75.5 → 73.5 latitude: 60.973 → 60.975 longitude: -151.315 → -151.304 time: 2026-10-27T15:54:13.524Z → 2026-10-27 15:54:13.714+00:00
-
27.10.2026 18:57:49 · USGS · update
depth: 76.9 → 75.5 latitude: 61.006 → 60.973 longitude: -151.325 → -151.315 magnitude: 2.7 → 2.8 time: 2026-10-27T15:54:13.175+00:00 → 2026-10-27T15:54:13.524+00:00 location: 12 km SW of Tyonek, Alaska → 14 km SW of Tyonek, Alaska
-
27.10.2026 18:57:49 · SISTEM · recompute
depth: 76.9 → 75.5 latitude: 61.006 → 60.973 longitude: -151.325 → -151.315 magnitude: 2.7 → 2.8 time: 2026-10-27T15:54:13.175Z → 2026-10-27 15:54:13.524+00:00
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