M4.0 earthquake 38 km WNW of Nelson Lagoon, Alaska
A magnitude 4.0 earthquake struck 38 km WNW of Nelson Lagoon, Alaska on Wed, Apr 6, 2016, 11:29 AM AKDT (19:29 UTC), 226 km (141 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2016-04-06 19:29:04 UTC
- Depth
- 226.2 km (140.6 mi), intermediate-depth
- Epicenter
- 56.112° N, 161.789° 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 |
|---|---|---|---|
| 4.0 | mb, body-wave | USGS National Earthquake Information Center | Preferred · Reviewed · ±0.196 · 7 stations |
| 4.0 | 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 8.4 km horizontally, 8.6 km in depth
- Magnitude uncertainty
- ±0.20
- Depth from
- From location
- Station coverage gap
- 48°
- Stations used
- 118
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 2 in the 30 days before it.
After
- 3.536 km NW of Nelson Lagoon, Alaska · 3823 days ago · 232 km deep · 11 km away
- 2.128 km W of Sand Point, Alaska · 3776 days ago · 79 km deep · 99 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us20005fwj (also filed as ak13360187, ak0164gqm4m0). Read Sun, Oct 4, 2026, 5:38 AM UTC.