M3.4 earthquake 268 km S of False Pass, Alaska
A magnitude 3.4 earthquake struck 268 km S of False Pass, Alaska on Wed, Feb 7, 2018, 4:33 PM AKST (01:33 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M3.5 168 km S of False Pass, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.4 (ML, local (Richter)), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-02-08 01:33:59 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 52.478° N, 162.687° W
- Region
- Alaska
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Magnitude estimates
Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.
| Mag. | Scale | Computed by | Notes |
|---|---|---|---|
| 3.4 | ML, local (Richter) | USGS National Earthquake Information Center | Preferred · Reviewed · ±0.128 · 8 stations |
| 3.4 | ML, local (Richter) | Alaska Earthquake Center | Preliminary |
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 7.9 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- Operator assigned
- Station coverage gap
- 232°, poorly surrounded by stations
- Stations used
- 41
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 1 in the 30 days before it.
After
- 3.1212 km SE of Akutan, Alaska · 3133 days ago · 10 km deep · 68 km away
- 2.4236 km SE of Akutan, Alaska · 3123 days ago · 17 km deep · 61 km away
- 2.5238 km S of False Pass, Alaska · 3123 days ago · 10 km deep · 31 km away
- 3.5168 km S of False Pass, Alaska · 3119 days ago · 16 km deep · 100 km away
- 2.9178 km S of False Pass, Alaska · 3119 days ago · 23 km deep · 90 km away
- 2.7169 km S of False Pass, Alaska · 3119 days ago · 24 km deep · 99 km away
- 2.8south of Alaska · 3101 days ago · 10 km deep · 57 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000d3mv (also filed as ak0181sir9eb, ak18413259). Read Thu, Oct 1, 2026, 7:23 AM UTC.