M2.1 earthquake Washington
A magnitude 2.1 earthquake struck in Washington on Sun, Jun 29, 1975, 9:15 AM PDT (16:15 UTC), 12 km (8 mi) below the surface.
A larger quake followed: M2.2 7 km N of Brinnon, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.1 (md), micro
- Local time
- UTC
- 1975-06-29 16:15:23 UTC
- Depth
- 12.4 km (7.7 mi), shallow
- Epicenter
- 48.612° N, 122.969° 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, 1.7 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 233°, poorly surrounded by stations
- Stations used
- 5
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 4 in the 30 days before it.
After
- 2.27 km N of Brinnon, Washington · 18702 days ago · 14 km deep · 96 km away
- 1.56 km NE of Bryant, Washington · 18699 days ago · 11 km deep · 74 km away
- 2.09 km N of Hamilton, Washington · 18691 days ago · 7 km deep · 71 km away
- 1.82 km NNE of Bay View, Washington · 18679 days ago · 24 km deep · 39 km away
- 1.87 km NE of Brinnon, Washington · 18669 days ago · 14 km deep · 99 km away
- 1.74 km NW of Oso, Washington · 18668 days ago · 8 km deep · 81 km away
- 1.712 km NNE of Maple Falls, Washington · 18666 days ago · 0 km deep · 83 km away
- 1.915 km SSW of Blyn, Washington · 18659 days ago · 39 km deep · 79 km away
- 2.36 km E of Marrowstone, Washington · 18656 days ago · 24 km deep · 68 km away
Before
- 1.92 km NW of Carlsborg, Washington · 18719 days ago · 45 km deep · 59 km away
- 1.62 km ESE of Lake Cavanaugh, Washington · 18720 days ago · 9 km deep · 79 km away
- 1.51 km SSW of Burlington, Washington · 18725 days ago · 22 km deep · 49 km away
- 1.71 km ENE of Quilcene, Washington · 18735 days ago · 48 km deep · 88 km away
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10861163. Read Tue, Sep 22, 2026, 9:59 AM UTC.