M3.5 earthquake 128 km SE of Chignik, Alaska
A magnitude 3.5 earthquake struck 128 km SE of Chignik, Alaska on Tue, Feb 13, 1979, 10:13 AM GMT-10 (20:13 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.5 122 km SE of Chignik, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.5 (ML, local (Richter)), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1979-02-13 20:13:54 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 55.471° N, 156.976° 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.
- Depth from
- OPERATOR_ASSIGNED
- Stations used
- 5
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 6 in the 30 days before it.
After
- 4.4133 km SE of Chignik, Alaska · 17397 days ago · 33 km deep · 7 km away
- 4.4south of Alaska · 17396 days ago · 33 km deep · 6 km away
- 4.5122 km SE of Chignik, Alaska · 17394 days ago · 33 km deep · 6 km away
Before
- 5.0129 km SE of Chignik, Alaska · 17397 days ago · 33 km deep · 8 km away
- 4.5114 km SE of Chignik, Alaska · 17397 days ago · 33 km deep · 25 km away
- 4.8118 km SE of Chignik, Alaska · 17397 days ago · 33 km deep · 26 km away
- 4.4127 km SE of Chignik, Alaska · 17397 days ago · 33 km deep · 13 km away
- 6.7121 km SE of Chignik, Alaska · 17397 days ago · 33 km deep · 12 km away
- 5.1116 km SE of Chignik, Alaska · 17398 days ago · 33 km deep · 14 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000yug. Read Thu, Oct 1, 2026, 1:51 PM UTC.