M1.6 earthquake 8 km S of Chelan Falls, Washington
A magnitude 1.6 earthquake struck 8 km S of Chelan Falls, Washington on Tue, Mar 11, 1986, 5:36 AM PST (13:36 UTC), 4 km (3 mi) below the surface.
A larger quake followed: M2.4 9 km SW of Royal City, 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
- 1986-03-11 13:36:57 UTC
- Depth
- 4.5 km (2.8 mi), shallow
- Epicenter
- 47.728° N, 120.000° 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 0.5 km horizontally, 1.1 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 109°
- Stations used
- 9
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 3 in the 30 days before it.
After
- 2.49 km SW of Royal City, Washington · 14802 days ago · 3 km deep · 100 km away
- 1.919 km SSW of Disautel, Washington · 14786 days ago · 0 km deep · 73 km away
- 1.95 km ENE of Entiat, Washington · 14777 days ago · 4 km deep · 11 km away
- 3.310 km N of Entiat, Washington · 14777 days ago · 13 km deep · 18 km away
- 1.810 km W of Mansfield, Washington · 14776 days ago · 11 km deep · 20 km away
- 2.611 km SW of Quincy, Washington · 14776 days ago · 3 km deep · 63 km away
- 2.313 km N of Almira, Washington · 14773 days ago · 6 km deep · 81 km away
- 1.52 km WSW of Entiat, Washington · 14768 days ago · 8 km deep · 19 km away
- 1.87 km SE of Marlin, Washington · 14756 days ago · 11 km deep · 91 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10203773. Read Tue, Sep 22, 2026, 5:15 PM UTC.