M1.6 earthquake 19 km WSW of Highland, Washington
A magnitude 1.6 earthquake struck 19 km WSW of Highland, Washington on Wed, Mar 18, 1981, 3:34 PM PST (23:34 UTC), 7 km (5 mi) below the surface.
A larger quake followed: M1.8 18 km ESE of Arlington, Oregon. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.6 (md), micro
- Local time
- UTC
- 1981-03-18 23:34:56 UTC
- Depth
- 7.2 km (4.5 mi), shallow
- Epicenter
- 46.094° N, 119.357° 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 0.6 km horizontally, 0.4 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- From location
- Station coverage gap
- 191°, poorly surrounded by stations
- Stations used
- 14
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 4 in the 30 days before it.
After
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10106228. Read Tue, Sep 22, 2026, 8:46 PM UTC.