M1.8 earthquake 3 km NW of Waterville, Washington
A magnitude 1.8 earthquake struck 3 km NW of Waterville, Washington on Sat, Oct 18, 1980, 4:40 PM PDT (23:40 UTC), 4 km (2 mi) below the surface.
A larger quake followed: M3.3 13 km ENE 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
- 1.8 (md), micro
- Local time
- UTC
- 1980-10-18 23:40:06 UTC
- Depth
- 3.7 km (2.3 mi), shallow
- Epicenter
- 47.671° N, 120.102° 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, 5.7 km in depth
- Magnitude uncertainty
- ±0.35
- Depth from
- Operator assigned
- Station coverage gap
- 67°
- Stations used
- 14
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 2 in the 30 days before it.
After
- 2.73 km N of Waterville, Washington · 16759 days ago · 7 km deep · 2 km away
- 1.76 km SW of Entiat, Washington · 16750 days ago · 2 km deep · 13 km away
- 3.313 km ENE of Royal City, Washington · 16748 days ago · 1 km deep · 93 km away
- 2.54 km ENE of Royal City, Washington · 16745 days ago · 1 km deep · 93 km away
- 2.25 km E of Entiat, Washington · 16734 days ago · 1 km deep · 3 km away
- 1.96 km E of Vantage, Washington · 16725 days ago · 2 km deep · 83 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10092498. Read Mon, Sep 28, 2026, 4:35 AM UTC.