M1.7 earthquake 9 km SW of Chelan Falls, Washington
A magnitude 1.7 earthquake struck 9 km SW of Chelan Falls, Washington on Fri, Apr 8, 1988, 12:33 AM PDT (07:33 UTC), 4 km (2 mi) below the surface.
A larger quake followed: M2.9 6 km ENE of Chelan, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.7 (md), micro
- Local time
- UTC
- 1988-04-08 07:33:59 UTC
- Depth
- 3.6 km (2.3 mi), shallow
- Epicenter
- 47.732° N, 120.060° 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, 1.4 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- From location
- Station coverage gap
- 98°
- 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: 11 in the 60 days after this one and 4 in the 30 days before it.
After
- 2.96 km ENE of Chelan, Washington · 14033 days ago · 0 km deep · 17 km away
- 1.96 km ENE of Chelan, Washington · 14032 days ago · 0 km deep · 16 km away
- 1.55 km E of Chelan, Washington · 14032 days ago · 3 km deep · 16 km away
- 1.84 km WNW of Waterville, Washington · 14032 days ago · 3 km deep · 9 km away
- 1.52 km SW of Entiat, Washington · 14024 days ago · -1 km deep · 15 km away
- 1.516 km NNW of Banks Lake South, Washington · 14022 days ago · 0 km deep · 53 km away
- 2.617 km NNW of Banks Lake South, Washington · 14022 days ago · -1 km deep · 52 km away
- 3.38 km WSW of Entiat, Washington · 14020 days ago · 6 km deep · 22 km away
- 1.56 km ENE of Chelan, Washington · 14012 days ago · -1 km deep · 16 km away
- 2.54 km WSW of Mansfield, Washington · 13997 days ago · 18 km deep · 28 km away
- 1.88 km NE of Chelan, Washington · 13993 days ago · 0 km deep · 21 km away
Before
- 2.67 km WSW of George, Washington · 14047 days ago · 0 km deep · 77 km away
- 1.917 km N of Cashmere, Washington · 14053 days ago · 0 km deep · 30 km away
- 2.527 km NNW of Leavenworth, Washington · 14071 days ago · 9 km deep · 59 km away
- 1.77 km NNE of Waterville, Washington · 14075 days ago · 4 km deep · 4 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10229333. Read Tue, Sep 22, 2026, 9:33 PM UTC.