M4.1 earthquake 130 km WNW of False Pass, Alaska
A magnitude 4.1 earthquake struck 130 km WNW of False Pass, Alaska on Sat, Apr 20, 2024, 11:23 PM AKDT (07:23 UTC), 244 km (151 mi) below the surface.
A larger quake followed: M4.2 37 km WNW 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
- 4.1 (mb), light
- Local time
- UTC
- 2024-04-21 07:23:49 UTC
- Depth
- 243.6 km (151.4 mi), intermediate-depth
- Epicenter
- 55.481° N, 165.134° W
- Region
- Alaska
- Strongest shaking
- I, not felt shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- I, not felt shaking
- Peak ground acceleration
- 0.0% of gravity
- Peak ground velocity
- -4.4 cm/s
- Map
- Automatic
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 7.7 km horizontally, 7.0 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 73°
- Stations used
- 125
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.237 km WNW of False Pass, Alaska · 864 days ago · 146 km deep · 92 km away · felt by 1
- 2.691 km W of False Pass, Alaska · 853 days ago · 134 km deep · 72 km away
- 2.741 km W of False Pass, Alaska · 848 days ago · 154 km deep · 92 km away
- 2.691 km NW of False Pass, Alaska · 844 days ago · 17 km deep · 51 km away
- 2.657 km WSW of False Pass, Alaska · 833 days ago · 131 km deep · 98 km away
- 2.686 km WSW of False Pass, Alaska · 832 days ago · 151 km deep · 100 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000mdlt (also filed as ak02455chxwc). Read Mon, Sep 28, 2026, 10:18 AM UTC.