M2.7 earthquake 2 km WSW of Hamilton, Washington
A magnitude 2.7 earthquake struck 2 km WSW of Hamilton, Washington on Tue, Apr 8, 1975, 5:04 PM PDT (00:04 UTC), -1 km (0 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.7 (md), micro
- Local time
- UTC
- 1975-04-09 00:04:41 UTC
- Depth
- -0.6 km (-0.4 mi), shallow
- Epicenter
- 48.509° N, 122.018° 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, 1.9 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- Operator assigned
- Station coverage gap
- 153°
- Stations used
- 8
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 1.51 km NW of Marietta, Washington · 18775 days ago · 3 km deep · 53 km away
- 2.05 km NNE of Startup, Washington · 18770 days ago · 26 km deep · 70 km away
- 1.95 km SW of Lyman, Washington · 18751 days ago · 8 km deep · 8 km away
- 1.71 km ENE of Quilcene, Washington · 18735 days ago · 48 km deep · 98 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10860563. Read Tue, Sep 22, 2026, 5:48 AM UTC.