M4.7 earthquake 20 km SSE of Tonsina, Alaska
A magnitude 4.7 earthquake struck 20 km SSE of Tonsina, Alaska on Sat, Jul 13, 1974, 3:44 AM GMT-9 (12:44 UTC), 55 km (34 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (mb), light
- Local time
- UTC
- 1974-07-13 12:44:50 UTC
- Depth
- 55.0 km (34.2 mi), shallow
- Epicenter
- 61.492° N, 145.007° 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
- 40
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 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 usp0000742. Read Sun, Sep 27, 2026, 12:08 AM UTC.