M2.5 earthquake 29 km NE of Yacolt, Washington
A magnitude 2.5 earthquake struck 29 km NE of Yacolt, Washington on Sat, Jun 25, 1977, 10:47 PM PDT (05:47 UTC), 0 km (0 mi) below the surface.
A larger quake followed: M2.7 17 km S of Mossyrock, 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), micro
- Local time
- UTC
- 1977-06-26 05:47:26 UTC
- Depth
- 0.1 km (0.1 mi), shallow
- Epicenter
- 46.029° N, 122.101° 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 1.3 km horizontally, 0.9 km in depth
- Magnitude uncertainty
- ±0.12
- Depth from
- From location
- Station coverage gap
- 304°, poorly surrounded by stations
- Stations used
- 4
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 5 in the 30 days before it.
After
- 2.717 km S of Mossyrock, Washington · 17967 days ago · 14 km deep · 48 km away
- 2.013 km ENE of Ashford, Washington · 17950 days ago · 2 km deep · 90 km away
- 1.916 km WNW of Packwood, Washington · 17949 days ago · 0 km deep · 71 km away
- 1.933 km NE of Amboy, Washington · 17944 days ago · 1 km deep · 15 km away
- 1.55 km SE of Mineral, Washington · 17943 days ago · 19 km deep · 73 km away
Before
- 2.221 km ENE of Packwood, Washington · 17988 days ago · 2 km deep · 90 km away
- 2.427 km SSE of Morton, Washington · 17991 days ago · 8 km deep · 33 km away
- 2.47 km SE of Mineral, Washington · 17992 days ago · 16 km deep · 71 km away
- 2.69 km SSW of Morton, Washington · 18004 days ago · 0 km deep · 53 km away
- 3.06 km SSW of Morton, Washington · 18012 days ago · 24 km deep · 55 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10843958. Read Tue, Sep 22, 2026, 12:10 PM UTC.