M1.9 earthquake 10 km SSE of Point Roberts, Washington
A magnitude 1.9 earthquake struck 10 km SSE of Point Roberts, Washington on Tue, Mar 13, 1979, 2:20 PM PST (22:20 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M2.5 19 km SSE of Oak Bay, Canada. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.9 (md), micro
- Local time
- UTC
- 1979-03-13 22:20:25 UTC
- Depth
- 10.3 km (6.4 mi), shallow
- Epicenter
- 48.899° N, 123.028° 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, 4.9 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- From location
- Station coverage gap
- 249°, poorly surrounded by stations
- Stations used
- 8
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 2 in the 30 days before it.
After
- 1.516 km W of Marietta, Washington · 17356 days ago · 12 km deep · 22 km away
- 2.519 km SSE of Oak Bay, Canada · 17351 days ago · 44 km deep · 67 km away
- 1.60 km WSW of Langford, Canada · 17349 days ago · 18 km deep · 62 km away
- 1.519 km SSW of Point Roberts, Washington · 17340 days ago · 19 km deep · 12 km away
- 1.56 km NW of La Conner, Washington · 17337 days ago · 22 km deep · 62 km away
- 1.55 km SW of Coupeville, Washington · 17323 days ago · 16 km deep · 82 km away
- 1.510 km SE of Salt Spring Island, Canada · 17313 days ago · 18 km deep · 30 km away
- 2.216 km SE of Glacier, Washington · 17309 days ago · 0 km deep · 92 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10849203. Read Tue, Sep 22, 2026, 8:27 PM UTC.