M3.0 earthquake 20 km W of Ruby, Alaska
A magnitude 3.0 earthquake struck 20 km W of Ruby, Alaska on Fri, Oct 2, 2020, 2:40 AM AKDT (10:40 UTC), 19 km (12 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.0 (ML, local (Richter)), minor
- Magnitude from
- Alaska Earthquake Center
- Local time
- UTC
- 2020-10-02 10:40:27 UTC
- Depth
- 18.9 km (11.7 mi), shallow
- Epicenter
- 64.729° N, 155.921° 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 |
|---|---|---|---|
| 3.0 | ML, local (Richter) | Alaska Earthquake Center | Preferred · Preliminary |
| 3.1 | ML, local (Richter) | USGS National Earthquake Information Center | Reviewed · ±0.038 · 92 stations |
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
- 52
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 1 in the 30 days before it.
After
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak020comir3a (also filed as us6000c4pe). Read Fri, Oct 2, 2026, 4:02 PM UTC.