M2.5 earthquake 2 km SW of Brady, Washington
A magnitude 2.5 earthquake struck 2 km SW of Brady, Washington on Wed, May 18, 1977, 4:06 AM PDT (11:06 UTC), 39 km (24 mi) below the surface.
A larger quake followed: M2.8 1 km NNW of Wauna, 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
- 1977-05-18 11:06:35 UTC
- Depth
- 39.3 km (24.4 mi), shallow
- Epicenter
- 46.977° N, 123.536° 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 0.1 km horizontally, 0.0 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- Operator assigned
- Station coverage gap
- 199°, poorly surrounded by stations
- 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: 7 in the 60 days after this one and 4 in the 30 days before it.
After
- 2.15 km SW of Gorst, Washington · 18010 days ago · 20 km deep · 82 km away
- 2.81 km NNW of Wauna, Washington · 17993 days ago · 44 km deep · 81 km away
- 1.510 km NW of Belfair, Washington · 17992 days ago · 24 km deep · 76 km away
- 1.56 km WNW of Belfair, Washington · 17989 days ago · 18 km deep · 73 km away
- 2.011 km WSW of Porter, Washington · 17989 days ago · 0 km deep · 13 km away
- 1.910 km WSW of Porter, Washington · 17980 days ago · 0 km deep · 12 km away
- 2.25 km SSE of Seabeck, Washington · 17968 days ago · 12 km deep · 89 km away
Before
- 2.00 km NW of North Puyallup, Washington · 18041 days ago · 15 km deep · 98 km away
- 1.910 km SSW of Seabeck, Washington · 18041 days ago · 16 km deep · 81 km away
- 1.92 km ESE of Dash Point, Washington · 18053 days ago · 12 km deep · 94 km away
- 2.12 km E of Dash Point, Washington · 18054 days ago · 12 km deep · 95 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10843708. Read Tue, Sep 22, 2026, 11:34 PM UTC.