M2.5 earthquake 196 km S of Adak, Alaska
A magnitude 2.5 earthquake struck 196 km S of Adak, Alaska on Sat, Oct 12, 2019, 8:15 PM HADT (05:15 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M2.6 141 km SSE of Adak, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.5 (ML, local (Richter)), micro
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2019-10-13 05:15:40 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 50.109° N, 176.747° W
- Region
- Alaska
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Magnitude estimates
Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.
| Mag. | Scale | Computed by | Notes |
|---|---|---|---|
| 2.5 | ML, local (Richter) | USGS National Earthquake Information Center | Preferred · Reviewed |
| 2.5 | ML, local (Richter) | Alaska Earthquake Center | Preliminary |
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 7.7 km horizontally, 2.0 km in depth
- Depth from
- Operator assigned
- Station coverage gap
- 262°, poorly surrounded by stations
- Stations used
- 30
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 0 in the 30 days before it.
After
- 2.1136 km S of Adak, Alaska · 2529 days ago · 31 km deep · 60 km away
- 2.6141 km SSE of Adak, Alaska · 2527 days ago · 30 km deep · 90 km away
- 2.2175 km SSE of Adak, Alaska · 2521 days ago · 8 km deep · 57 km away
- 1.9142 km SSW of Adak, Alaska · 2515 days ago · 26 km deep · 76 km away
- 2.0104 km S of Adak, Alaska · 2504 days ago · 26 km deep · 93 km away
- 2.6206 km S of Adak, Alaska · 2487 days ago · 10 km deep · 32 km away
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us70005why (also filed as ak019d52rqjq). Read Thu, Oct 1, 2026, 1:00 PM UTC.