M1.6 earthquake 7 km SSW of Chelan Falls, Washington
A magnitude 1.6 earthquake struck 7 km SSW of Chelan Falls, Washington on Sun, Jul 31, 1988, 12:15 PM PDT (19:15 UTC), -1 km (0 mi) below the surface.
A larger quake followed: M2.2 10 km SSE of Skykomish, 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, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1988-07-31 19:15:46 UTC
- Depth
- -0.6 km (-0.4 mi), shallow
- Epicenter
- 47.743° N, 120.029° 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 0.6 km horizontally
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 69°
- Stations used
- 18
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
- 2.210 km SSE of Skykomish, Washington · 13940 days ago · 0 km deep · 95 km away
- 1.928 km NNW of Leavenworth, Washington · 13935 days ago · -1 km deep · 60 km away
- 1.65 km NW of Waterville, Washington · 13921 days ago · 5 km deep · 10 km away
- 1.6Washington · 13916 days ago · 5 km deep · 2 km away
- 2.115 km NE of Marlin, Washington · 13904 days ago · 2 km deep · 92 km away
- 2.16 km ENE of Entiat, Washington · 13900 days ago · 5 km deep · 9 km away
- 1.79 km SW of Chelan Falls, Washington · 13894 days ago · 6 km deep · 4 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10238213. Read Sat, Oct 3, 2026, 6:30 PM UTC.