M1.6 earthquake 5 km SW of Entiat, Washington
A magnitude 1.6 earthquake struck 5 km SW of Entiat, Washington on Wed, Mar 11, 1987, 2:49 AM PST (10:49 UTC), 3 km (2 mi) below the surface.
A larger quake followed: M1.7 1 km ENE of Entiat, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.6 (md), micro
- Local time
- UTC
- 1987-03-11 10:49:46 UTC
- Depth
- 3.0 km (1.8 mi), shallow
- Epicenter
- 47.638° N, 120.255° 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 0.4 km horizontally, 1.2 km in depth
- Magnitude uncertainty
- ±0.11
- Depth from
- From location
- Station coverage gap
- 76°
- Stations used
- 19
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 3 in the 30 days before it.
After
- 1.55 km WSW of Entiat, Washington · 14433 days ago · 4 km deep · 2 km away
- 1.71 km ENE of Entiat, Washington · 14430 days ago · 4 km deep · 7 km away
- 1.92 km WSW of Chelan, Washington · 14418 days ago · -1 km deep · 26 km away
- 2.47 km NE of Royal City, Washington · 14417 days ago · 1 km deep · 93 km away
- 2.023 km SW of Vantage, Washington · 14409 days ago · 3 km deep · 93 km away
- 1.81 km WNW of Waterville, Washington · 14392 days ago · 5 km deep · 13 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10216183. Read Tue, Sep 22, 2026, 6:30 AM UTC.