Washington earthquakes

M2.1 earthquake 3 km NE of Dash Point, Washington

A magnitude 2.1 earthquake struck 3 km NE of Dash Point, Washington on Sun, Mar 30, 1975, 8:15 AM PDT (15:15 UTC), 14 km (9 mi) below the surface.

A larger quake followed: M2.2 2 km NNE of Riverton, Washington. This one was a foreshock.

Dash Point forecastMore in Washington

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.1 (md), micro
Local time
UTC
1975-03-30 15:15:17 UTC
Depth
14.5 km (9.0 mi), shallow
Epicenter
47.338° N, 122.386° W
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 0.9 km horizontally, 47.2 km in depth
Magnitude uncertainty
±0.15
Depth from
Operator assigned
Station coverage gap
88°
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: 14 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 1.88 km W of Longbranch, Washington · 18802 days ago · 8 km deep · 40 km away
  2. 2.22 km NNE of Riverton, Washington · 18801 days ago · 25 km deep · 20 km away
  3. 3.711 km SW of Greenwater, Washington · 18793 days ago · 6 km deep · 56 km away
  4. 2.817 km ESE of Carbonado, Washington · 18793 days ago · -1 km deep · 53 km away
  5. 2.327 km S of Greenwater, Washington · 18792 days ago · 1 km deep · 77 km away
  6. 2.128 km S of Greenwater, Washington · 18788 days ago · 2 km deep · 77 km away
  7. 4.010 km SSW of Seabeck, Washington · 18787 days ago · 40 km deep · 46 km away
  8. 3.927 km S of Greenwater, Washington · 18785 days ago · 4 km deep · 76 km away
  9. 1.929 km SSE of Greenwater, Washington · 18785 days ago · 1 km deep · 79 km away
  10. 4.22 km SW of DuPont, Washington · 18780 days ago · 45 km deep · 35 km away
  11. 2.05 km NNE of Startup, Washington · 18771 days ago · 26 km deep · 81 km away
  12. 1.71 km NNE of Snoqualmie, Washington · 18752 days ago · 8 km deep · 48 km away
  13. 1.55 km S of Fall City, Washington · 18748 days ago · 18 km deep · 42 km away
  14. 1.75 km SSE of Keyport, Washington · 18744 days ago · 18 km deep · 39 km away

Before

  1. 2.83 km NW of Black Diamond, Washington · 18815 days ago · 20 km deep · 27 km away
  2. 2.18 km WSW of Lofall, Washington · 18822 days ago · 19 km deep · 58 km away
  3. 1.918 km SSE of Carbonado, Washington · 18826 days ago · 6 km deep · 56 km away
  4. 2.05 km SW of Wilderness Rim, Washington · 18830 days ago · 19 km deep · 43 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10860538. Read Tue, Sep 22, 2026, 10:00 AM UTC.