M5.3 earthquake 50 km NW of Nelson Lagoon, Alaska
A magnitude 5.3 earthquake struck 50 km NW of Nelson Lagoon, Alaska on Wed, Jun 29, 2016, 12:37 AM AKDT (08:37 UTC), 200 km (124 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.3 (Mww, W-phase moment), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2016-06-29 08:37:22 UTC
- Depth
- 199.5 km (124.0 mi), intermediate-depth
- Epicenter
- 56.311° N, 161.803° W
- Region
- Alaska
- Strongest shaking
- IV, light shaking
- Tsunami flag
- Yes: a large quake in an oceanic region
- 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 |
|---|---|---|---|
| 5.3 | Mww, W-phase moment | USGS National Earthquake Information Center | Preferred · Reviewed |
| 5.35 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
| 5.3 | Mw, moment | Alaska Earthquake Center | Preliminary |
| 5.3 | ML, local (Richter) | NOAA National Tsunami Warning Center | Reviewed · 10 stations |
Tsunami
The USGS flags a quake this large in an oceanic region. The flag does not mean a tsunami happened; the tsunami warning centers decide that, and their messages are below when they issued any.
Current tsunami warnings: tsunami.gov. Warnings in force in the US also appear on our alerts pages.
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- IV, light shaking
- Map
- Automatic
Did you feel it?
No one has reported feeling this quake to the USGS.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Oblique normal
- Moment magnitude
- 5.3 Mww
- Nodal plane 1
- Strike 292°, dip 58°, rake -134°
- Nodal plane 2
- Strike 174°, dip 53°, rake -41°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.8 km horizontally, 3.8 km in depth
- Depth from
- From location
- Station coverage gap
- 15°
- Stations used
- 152
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.3 and up: 3 in the 60 days after this one and 2 in the 30 days before it.
After
- 2.456 km SSW of Nelson Lagoon, Alaska · 3719 days ago · 114 km deep · 81 km away
- 2.955 km WSW of Nelson Lagoon, Alaska · 3713 days ago · 181 km deep · 63 km away
- 2.346 km ESE of Nelson Lagoon, Alaska · 3695 days ago · 144 km deep · 95 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us200067vg (also filed as ak13732173, at00o9iym9, ak0168bh99go, iscgem611830049). Read Sun, Oct 4, 2026, 7:49 PM UTC.