M4.2 earthquake 226 km SSE of King Cove, Alaska
A magnitude 4.2 earthquake struck 226 km SSE of King Cove, Alaska on Wed, Mar 15, 2017, 9:20 AM AKDT (17:20 UTC), 10 km (6 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-03-15 17:20:18 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 53.158° N, 161.113° 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 |
|---|---|---|---|
| 4.2 | mb, body-wave | USGS National Earthquake Information Center | Preferred · Reviewed · ±0.121 · 19 stations |
| 4.2 | mb, body-wave | 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 8.2 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.12
- Depth from
- Operator assigned
- Station coverage gap
- 172°
- Stations used
- 88
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 3 in the 30 days before it.
After
- 3.0244 km SSE of False Pass, Alaska · 3484 days ago · 18 km deep · 57 km away
- 2.5178 km S of King Cove, Alaska · 3482 days ago · 14 km deep · 66 km away
- 3.5227 km SSE of King Cove, Alaska · 3473 days ago · 35 km deep · 16 km away
- 3.2218 km SSE of False Pass, Alaska · 3464 days ago · 10 km deep · 100 km away
- 2.9197 km S of Sand Point, Alaska · 3463 days ago · 10 km deep · 77 km away
- 3.1232 km SSE of King Cove, Alaska · 3456 days ago · 10 km deep · 32 km away
- 2.9207 km SSE of Sand Point, Alaska · 3450 days ago · 21 km deep · 97 km away
- 2.8200 km SSE of King Cove, Alaska · 3433 days ago · 10 km deep · 41 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us20008sb9 (also filed as ak15499235, ak0173eo0dt5). Read Fri, Oct 2, 2026, 9:07 PM UTC.