M1.5 earthquake 4 km ENE of Blaine, Washington
A magnitude 1.5 earthquake struck 4 km ENE of Blaine, Washington on Mon, Sep 21, 1981, 6:16 AM PDT (13:16 UTC), 10 km (7 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.5 (md), micro
- Local time
- UTC
- 1981-09-21 13:16:59 UTC
- Depth
- 10.5 km (6.5 mi), shallow
- Epicenter
- 49.002° N, 122.690° 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 2.0 km horizontally, 4.5 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- Operator assigned
- Station coverage gap
- 255°, poorly surrounded by stations
- Stations used
- 10
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 0 in the 60 days after this one and 3 in the 30 days before it.
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10118838. Read Tue, Sep 22, 2026, 4:16 PM UTC.