M6.6 earthquake 104 km SSE of Perryville, Alaska
A magnitude 6.6 earthquake struck 104 km SSE of Perryville, Alaska on Thu, Nov 10, 1938, 2:57 PM GMT-10 (00:57 UTC), 35 km (22 mi) below the surface.
A larger quake followed: M6.9 105 km ESE of Perryville, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.6 (mw), strong
- Local time
- UTC
- 1938-11-11 00:57:48 UTC
- Depth
- 35.0 km (21.7 mi), shallow
- Epicenter
- 55.018° N, 158.640° 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.
- Magnitude uncertainty
- ±0.24
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 6.9105 km ESE of Perryville, Alaska · 32086 days ago · 35 km deep · 72 km away
- 5.9182 km SE of Perryville, Alaska · 32050 days ago · 15 km deep · 94 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem902779 (also filed as ushis1221). Read Tue, Sep 22, 2026, 9:20 AM UTC.