M4.1 earthquake 17 km ENE of Chase, Alaska
A magnitude 4.1 earthquake struck 17 km ENE of Chase, Alaska on Sat, Aug 4, 1979, 11:12 AM GMT-9 (20:12 UTC), 99 km (62 mi) below the surface.
A larger quake followed: M4.3 24 km E of Skwentna, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.1 (mb), light
- Local time
- UTC
- 1979-08-04 20:12:10 UTC
- Depth
- 99.0 km (61.5 mi), intermediate-depth
- Epicenter
- 62.490° N, 149.771° 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
- 22
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 4 in the 30 days before it.
After
- 4.324 km E of Skwentna, Alaska · 17210 days ago · 81 km deep · 84 km away
- 3.125 km W of Petersville, Alaska · 17205 days ago · 33 km deep · 76 km away
- 3.446 km NW of Petersville, Alaska · 17188 days ago · 131 km deep · 87 km away
Before
- 3.033 km SW of Petersville, Alaska · 17217 days ago · 33 km deep · 79 km away
- 5.355 km NNE of Chickaloon, Alaska · 17234 days ago · 58 km deep · 88 km away
- 3.021 km SSW of Petersville, Alaska · 17238 days ago · 33 km deep · 63 km away
- 4.962 km SE of Denali National Park, Alaska · 17241 days ago · 130 km deep · 93 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000127q. Read Tue, Sep 22, 2026, 9:57 AM UTC.