M2.7 earthquake 5 km ESE of Okanogan, Washington
A magnitude 2.7 earthquake struck 5 km ESE of Okanogan, Washington on Fri, Nov 18, 1977, 4:31 AM PST (12:31 UTC), 15 km (9 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.7 (md), micro
- Local time
- UTC
- 1977-11-18 12:31:23 UTC
- Depth
- 15.0 km (9.3 mi), shallow
- Epicenter
- 48.345° N, 119.510° 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 0.1 km horizontally, 0.1 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- Operator assigned
- Station coverage gap
- 156°
- Stations used
- 11
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 2 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 uw10845208. Read Tue, Sep 22, 2026, 8:30 AM UTC.