58 km SW of Adak, Alaska
19 October 2026, 00:04:41 (+03) 2026-10-18 21:04:41 UTC
- Magnitude
- 2.7 ml
- Depth
- 16.0 km
- Coordinates
- 51.4780, -177.1830
- Data consistency
- 86/100
Regional activity (100 km)
- Last 24 hours
- 0
- Last 7 days
- 7
- Last 30 days
- 45
Approximate energy released
≈ 0.2 t TNT
7.08e+8 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
50 earthquakes
By magnitude
- M0 0
- M1 0
- M2 35
- M3 12
- M4 3
- M5 0
- M6 0
- M7 0
- M8+ 0
By depth
- 0–10 km 7
- 10–20 km 16
- 20–40 km 25
- 40–70 km 1
- 70–150 km 1
- 150+ km 0
Largest previous earthquakes within 100 km
Largest earthquakes in the platform catalogue and entries from historical catalogues (with citation).
- M3,9 107 km SSE of Adak, Alaska 17.10.2026 · 92 km
- M3,5 126 km WSW of Adak, Alaska 25.09.2026 · 75 km
- M3,1 123 km WSW of Adak, Alaska 09.10.2026 · 71 km
- M3,0 63 km S of Adak, Alaska 16.10.2026 · 36 km
- M2,7 61 km SW of Adak, Alaska 18.10.2026 · 5 km
- M2,7 150 km SW of Adak, Alaska 17.10.2026 · 94 km
- M2,7 54 km SSE of Adak, Alaska 16.10.2026 · 56 km
- M2,7 115 km SW of Adak, Alaska 08.10.2026 · 59 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
ANDREANOF ISLANDS, ALEUTIAN IS.
|
2.4 ml | 18.3 km | 21:04:43.160 | Δt 1.51 sn · 8.77 km · ΔM -0.3 | Original record |
|
USGS Earthquake Hazards Program
Displayed
58 km SW of Adak, Alaska
|
2.7 ml | 16.0 km | 21:04:41.647 | 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
-
22.10.2026 09:49:54 · SISTEM · recompute
depth: 18.3 → 16 latitude: 51.5527 → 51.478 longitude: -177.2232 → -177.183 magnitude: 2.4 → 2.7 time: 2026-10-18T21:04:43.160Z → 2026-10-18 21:04:41.647+00:00 source count: 1 → 2 review status: automatic → reviewed confirming sources: emsc → emsc,usgs preferred source: 3 → 4
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