M2.3 earthquake 12 km E of Waterville, Washington
A magnitude 2.3 earthquake struck 12 km E of Waterville, Washington on Thu, Oct 28, 1999, 2:13 PM PDT (21:13 UTC), -1 km (-1 mi) below the surface.
A larger quake followed: M3.0 4 km S of Entiat, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.3 (md), micro
- Local time
- UTC
- 1999-10-28 21:13:18 UTC
- Depth
- -0.9 km (-0.6 mi), shallow
- Epicenter
- 47.633° N, 119.903° 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 0.2 km horizontally, 0.7 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- Operator assigned
- Station coverage gap
- 89°
- Stations used
- 8
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 2 in the 30 days before it.
After
- 1.515 km NE of Twisp, Washington · 9826 days ago · -1 km deep · 92 km away
- 2.59 km NE of Rock Island, Washington · 9825 days ago · -1 km deep · 24 km away
- 1.551 km WSW of Twisp, Washington · 9807 days ago · 6 km deep · 94 km away
- 1.96 km ENE of Entiat, Washington · 9791 days ago · 5 km deep · 18 km away
- 3.04 km S of Entiat, Washington · 9775 days ago · 6 km deep · 22 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10490698. Read Wed, Sep 30, 2026, 2:56 AM UTC.