M3.7 earthquake 52 km ENE of Whittier, Alaska
A magnitude 3.7 earthquake struck 52 km ENE of Whittier, Alaska on Wed, Oct 12, 1983, 12:00 PM GMT-9 (21:00 UTC), 38 km (24 mi) below the surface.
A larger quake followed: M4.2 36 km NNW of Valdez, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.7 (mb), minor
- Local time
- UTC
- 1983-10-12 21:00:54 UTC
- Depth
- 38.4 km (23.9 mi), shallow
- Epicenter
- 61.029° N, 147.879° 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
- FROM_LOCATION
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 9 in the 30 days before it.
After
- 4.236 km NNW of Valdez, Alaska · 15680 days ago · 51 km deep · 79 km away
- 3.840 km W of Tatitlek, Alaska · 15676 days ago · 23 km deep · 28 km away
- 3.242 km W of Tatitlek, Alaska · 15654 days ago · 33 km deep · 28 km away
- 3.17 km SSW of Sunrise, Alaska · 15641 days ago · 33 km deep · 88 km away
Before
- 3.235 km W of Tatitlek, Alaska · 15688 days ago · 33 km deep · 35 km away
- 3.135 km W of Tatitlek, Alaska · 15689 days ago · 16 km deep · 37 km away
- 3.032 km WNW of Tatitlek, Alaska · 15698 days ago · 33 km deep · 36 km away
- 3.636 km W of Tatitlek, Alaska · 15710 days ago · 33 km deep · 33 km away
- 3.331 km NE of Chenega, Alaska · 15713 days ago · 33 km deep · 82 km away
- 4.943 km WNW of Tatitlek, Alaska · 15714 days ago · 53 km deep · 24 km away
- 3.535 km W of Tatitlek, Alaska · 15715 days ago · 33 km deep · 33 km away
- 3.330 km W of Tatitlek, Alaska · 15715 days ago · 33 km deep · 38 km away
- 3.025 km W of Tatitlek, Alaska · 15715 days ago · 33 km deep · 45 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001yyc. Read Tue, Sep 22, 2026, 10:18 AM UTC.