M1.8 earthquake 7 km N of Waterville, Washington
A magnitude 1.8 earthquake struck 7 km N of Waterville, Washington on Tue, Oct 29, 1985, 7:38 PM PST (03:38 UTC), 5 km (3 mi) below the surface.
A larger quake followed: M1.9 12 km NNE of Mansfield, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.8 (md), micro
- Local time
- UTC
- 1985-10-30 03:38:55 UTC
- Depth
- 4.7 km (2.9 mi), shallow
- Epicenter
- 47.715° N, 120.054° 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, 1.0 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- From location
- Station coverage gap
- 88°
- Stations used
- 10
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 7 in the 30 days before it.
After
- 1.75 km SSE of Coulee City, Washington · 14934 days ago · 0 km deep · 61 km away
- 1.912 km NNE of Mansfield, Washington · 14930 days ago · 0 km deep · 42 km away
- 2.017 km NNW of Banks Lake South, Washington · 14926 days ago · -1 km deep · 50 km away
- 2.11 km ENE of Riverside, Washington · 14920 days ago · 11 km deep · 97 km away
- 2.26 km NW of Entiat, Washington · 14916 days ago · 7 km deep · 16 km away
- 3.28 km NNW of Moses Lake North, Washington · 14914 days ago · 20 km deep · 73 km away
- 1.78 km W of Entiat, Washington · 14904 days ago · 4 km deep · 21 km away
- 2.64 km NE of Royal City, Washington · 14902 days ago · 0 km deep · 94 km away
Before
- 1.914 km SSW of Vantage, Washington · 14945 days ago · 0 km deep · 99 km away
- 2.417 km NNW of Banks Lake South, Washington · 14955 days ago · 0 km deep · 49 km away
- 2.112 km SE of Bridgeport, Washington · 14956 days ago · 0 km deep · 43 km away
- 3.29 km NNW of Entiat, Washington · 14957 days ago · 6 km deep · 16 km away
- 1.59 km WNW of Entiat, Washington · 14960 days ago · 4 km deep · 20 km away
- 1.61 km NNW of Chelan Falls, Washington · 14966 days ago · -1 km deep · 12 km away
- 1.8Washington · 14967 days ago · 4 km deep · 6 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10201918. Read Tue, Sep 22, 2026, 8:37 AM UTC.