M2.7 earthquake 6 km WSW of Entiat, Washington
A magnitude 2.7 earthquake struck 6 km WSW of Entiat, Washington on Fri, Aug 23, 2002, 8:36 PM PDT (03:36 UTC), 3 km (2 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
- 2.7 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 2002-08-24 03:36:16 UTC
- Depth
- 3.0 km (1.9 mi), shallow
- Epicenter
- 47.659° N, 120.291° W
- Region
- Washington
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Magnitude estimates
Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.
| Mag. | Scale | Computed by | Notes |
|---|---|---|---|
| 2.7 | Md, duration | Pacific Northwest Seismic Network | Preferred · Final · ±0.03 · 13 stations |
| 2.7 | Md, duration | USGS National Earthquake Information Center | Reviewed |
What happened
The USGS’s account of the effects of this earthquake.
Felt in the Wenatchee area.
From the USGS event page for uw10574068. U.S. Geological Survey text and figures are in the public domain.
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 0.5 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.03
- Depth from
- From location
- Station coverage gap
- 51°
- Stations used
- 33
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
- 1.77 km SSW of Chelan Falls, Washington · 8800 days ago · 1 km deep · 22 km away
- 2.06 km NE of Rock Island, Washington · 8798 days ago · 12 km deep · 31 km away
- 1.510 km NW of Entiat, Washington · 8783 days ago · 2 km deep · 9 km away
- 2.54 km SW of Entiat, Washington · 8764 days ago · 2 km deep · 3 km away
- 1.93 km NW of Waterville, Washington · 8755 days ago · 3 km deep · 14 km away
- 1.82 km SSE of Entiat, Washington · 8746 days ago · -1 km deep · 7 km away
- 2.913 km WSW of Royal City, Washington · 8746 days ago · 2 km deep · 98 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10574068 (also filed as usp000bah8). Read Fri, Oct 2, 2026, 11:40 AM UTC.