M4.9 earthquake 12 km NE of Chignik, Alaska
A magnitude 4.9 earthquake struck 12 km NE of Chignik, Alaska on Thu, Mar 2, 1978, 4:41 AM GMT-10 (14:41 UTC), 88 km (55 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb), light
- Local time
- UTC
- 1978-03-02 14:41:40 UTC
- Depth
- 88.0 km (54.7 mi), intermediate-depth
- Epicenter
- 56.388° N, 158.282° 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
- 68
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 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 usp0000t6x. Read Tue, Sep 22, 2026, 4:01 AM UTC.