M1.5 earthquake 5 km SSW of Chelan Falls, Washington
A magnitude 1.5 earthquake struck 5 km SSW of Chelan Falls, Washington on Fri, May 6, 1977, 10:27 AM PDT (17:27 UTC), 4 km (3 mi) below the surface.
A larger quake followed: M2.3 7 km N of Quincy, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.5 (md), micro
- Local time
- UTC
- 1977-05-06 17:27:49 UTC
- Depth
- 4.4 km (2.8 mi), shallow
- Epicenter
- 47.757° N, 120.014° 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, 1.4 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 119°
- Stations used
- 7
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 3 in the 30 days before it.
After
- 2.10 km SW of Waterville, Washington · 18039 days ago · 0 km deep · 14 km away
- 2.0Washington · 18037 days ago · 0 km deep · 15 km away
- 1.64 km NW of Waterville, Washington · 18034 days ago · 0 km deep · 13 km away
- 1.510 km WSW of Entiat, Washington · 18030 days ago · 0 km deep · 27 km away
- 1.78 km SSW of Chelan Falls, Washington · 18023 days ago · 3 km deep · 3 km away
- 1.712 km W of Entiat, Washington · 18020 days ago · 0 km deep · 29 km away
- 1.70 km SSW of Entiat, Washington · 18004 days ago · 0 km deep · 18 km away
- 2.37 km N of Quincy, Washington · 17997 days ago · 0 km deep · 52 km away
- 2.35 km NNE of Waterville, Washington · 17993 days ago · 0 km deep · 7 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10843613. Read Sat, Sep 26, 2026, 5:04 PM UTC.