M3.3 earthquake 23 km NNW of Sutton-Alpine, Alaska
A magnitude 3.3 earthquake struck 23 km NNW of Sutton-Alpine, Alaska on Sun, Feb 5, 1984, 10:16 PM AKST (07:16 UTC), 18 km (11 mi) below the surface.
A larger quake followed: M4.8 8 km NNW of Houston, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.3 (ML, local (Richter)), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1984-02-06 07:16:31 UTC
- Depth
- 18.3 km (11.4 mi), shallow
- Epicenter
- 61.983° N, 148.877° W
- Region
- Alaska
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
What happened
The USGS’s account of the effects of this earthquake.
Felt in the Anchorage and Palmer areas.
From the USGS event page for usp00021tg. U.S. Geological Survey text and figures are in the public domain.
Did you feel it?
No one has reported feeling this quake to the USGS.
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 1 in the 30 days before it.
After
- 3.99 km S of Knik, Alaska · 15558 days ago · 43 km deep · 82 km away
- 4.88 km NNW of Houston, Alaska · 15541 days ago · 67 km deep · 60 km away
- 4.7Southern Alaska · 15531 days ago · 66 km deep · 90 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00021tg. Read Thu, Oct 1, 2026, 2:58 PM UTC.