M3.9 earthquake 17 km SSW of Susitna, Alaska
A magnitude 3.9 earthquake struck 17 km SSW of Susitna, Alaska on Sat, Dec 9, 1978, 7:10 AM GMT-10 (17:10 UTC), 73 km (45 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.9 (mb, body-wave), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1978-12-09 17:10:38 UTC
- Depth
- 73.0 km (45.4 mi), intermediate-depth
- Epicenter
- 61.397° N, 150.647° 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
- 33
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 2 in the 30 days before it.
After
- 3.41 km S of Willow, Alaska · 17439 days ago · 34 km deep · 49 km away
- 3.87 km E of Nikiski, Alaska · 17435 days ago · 85 km deep · 82 km away
- 3.535 km NNW of Susitna, Alaska · 17431 days ago · 48 km deep · 49 km away
- 3.512 km N of Sunrise, Alaska · 17431 days ago · 34 km deep · 79 km away
- 3.68 km NNE of Sunrise, Alaska · 17416 days ago · 49 km deep · 84 km away
- 3.719 km WSW of Susitna North, Alaska · 17408 days ago · 33 km deep · 79 km away
- 3.024 km SSW of Anchorage, Alaska · 17405 days ago · 32 km deep · 48 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000xuy. Read Sat, Oct 3, 2026, 1:35 PM UTC.