M3.8 earthquake 19 km NE of Point Possession, Alaska
A magnitude 3.8 earthquake struck 19 km NE of Point Possession, Alaska on Thu, Jul 21, 1977, 8:57 PM GMT-9 (05:57 UTC), 51 km (32 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.8 (mb), minor
- Local time
- UTC
- 1977-07-22 05:57:00 UTC
- Depth
- 51.0 km (31.7 mi), shallow
- Epicenter
- 61.027° N, 150.401° W
- Region
- Alaska
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Stations used
- 22
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 3.26 km NW of Tyonek, Alaska · 17943 days ago · 33 km deep · 44 km away
- 3.012 km WSW of Willow, Alaska · 17932 days ago · 42 km deep · 76 km away
- 3.710 km SW of Point Possession, Alaska · 17902 days ago · 33 km deep · 30 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000pu7. Read Tue, Sep 22, 2026, 6:36 AM UTC.