M2.0 earthquake Washington
A magnitude 2.0 earthquake struck in Washington on Tue, Mar 11, 1975, 11:26 PM PDT (06:26 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M2.2 2 km NNE of Riverton, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.0 (md), micro
- Local time
- UTC
- 1975-03-12 06:26:11 UTC
- Depth
- 10.3 km (6.4 mi), shallow
- Epicenter
- 48.385° N, 122.377° W
- Region
- Washington
- 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.
- Location uncertainty
- About 1.1 km horizontally, 8.0 km in depth
- Magnitude uncertainty
- ±0.12
- Depth from
- Operator assigned
- Station coverage gap
- 87°
- Stations used
- 6
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 3 in the 30 days before it.
After
- 2.22 km NNE of Riverton, Washington · 18802 days ago · 25 km deep · 98 km away
- 2.72 km WSW of Hamilton, Washington · 18795 days ago · -1 km deep · 30 km away
- 1.51 km NW of Marietta, Washington · 18775 days ago · 3 km deep · 48 km away
- 2.05 km NNE of Startup, Washington · 18771 days ago · 26 km deep · 72 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10860513. Read Wed, Sep 23, 2026, 3:32 AM UTC.