M1.8 earthquake 13 km WNW of Orcas, Washington
A magnitude 1.8 earthquake struck 13 km WNW of Orcas, Washington on Mon, Mar 8, 1982, 1:33 AM PST (09:33 UTC), 12 km (8 mi) below the surface.
A larger quake followed: M1.9 3 km WSW of Lake Cavanaugh, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.8 (md), micro
- Local time
- UTC
- 1982-03-08 09:33:46 UTC
- Depth
- 12.2 km (7.6 mi), shallow
- Epicenter
- 48.642° N, 123.118° 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 4.8 km horizontally, 9.8 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- Operator assigned
- Station coverage gap
- 208°, 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: 7 in the 60 days after this one and 1 in the 30 days before it.
After
- 1.93 km WSW of Lake Cavanaugh, Washington · 16269 days ago · 13 km deep · 86 km away
- 1.73 km S of Lake Cavanaugh, Washington · 16239 days ago · 10 km deep · 90 km away
- 2.44 km S of Mount Vernon, Washington · 16239 days ago · 15 km deep · 65 km away
- 2.62 km SSE of Mount Vernon, Washington · 16238 days ago · 19 km deep · 65 km away
- 2.010 km N of Quilcene, Washington · 16227 days ago · 18 km deep · 82 km away
- 1.518 km S of Point Roberts, Washington · 16215 days ago · 74 km deep · 20 km away
- 1.84 km SSW of Clinton, Washington · 16212 days ago · 28 km deep · 94 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10129148. Read Wed, Sep 23, 2026, 6:09 PM UTC.