M2.5 earthquake 4 km SW of Entiat, Washington
A magnitude 2.5 earthquake struck 4 km SW of Entiat, Washington on Fri, Oct 4, 2002, 10:31 AM PDT (17:31 UTC), 2 km (1 mi) below the surface.
A larger quake followed: M2.9 13 km WSW 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
- 2.5 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 2002-10-04 17:31:32 UTC
- Depth
- 1.7 km (1.1 mi), shallow
- Epicenter
- 47.655° N, 120.253° 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 0.3 km horizontally, 1.6 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 52°
- Stations used
- 20
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
- 1.93 km NW of Waterville, Washington · 8754 days ago · 3 km deep · 11 km away
- 1.82 km SSE of Entiat, Washington · 8746 days ago · -1 km deep · 4 km away
- 2.913 km WSW of Royal City, Washington · 8746 days ago · 2 km deep · 96 km away
- 2.73 km NNE of Entiat, Washington · 8742 days ago · -1 km deep · 7 km away
- 2.17 km SW of Chelan Falls, Washington · 8718 days ago · -1 km deep · 19 km away
- 1.67 km SSW of Marlin, Washington · 8715 days ago · 0 km deep · 98 km away
- 1.62 km ESE of Okanogan, Washington · 8708 days ago · -1 km deep · 93 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10565403. Read Thu, Oct 1, 2026, 11:01 PM UTC.