M5.9 earthquake 122 km SW of Adak, Alaska
A magnitude 5.9 earthquake struck 122 km SW of Adak, Alaska on Thu, Jul 19, 1951, 9:41 AM GMT-11 (20:41 UTC), 39 km (24 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.9 (mw), moderate
- Local time
- UTC
- 1951-07-19 20:41:25 UTC
- Depth
- 38.6 km (24.0 mi), shallow
- Epicenter
- 51.129° N, 177.924° 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
- ±0.20
- Depth from
- From location
Nearby
Within 100 km, magnitude 2.5 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem894530 (also filed as ushis1747). Read Mon, Sep 21, 2026, 10:16 PM UTC.