M1.6 earthquake 20 km NE of Pasco, WA
A magnitude 1.6 earthquake struck 20 km NE of Pasco, WA on Wed, Apr 3, 1974, 2:49 PM PDT (21:49 UTC), 3 km (2 mi) below the surface.
A larger quake followed: M2.2 Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.6 (md), micro
- Local time
- UTC
- 1974-04-03 21:49:57 UTC
- Depth
- 3.1 km (1.9 mi), shallow
- Epicenter
- 46.369° N, 118.924° 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 0.7 km horizontally, 0.7 km in depth
- Magnitude uncertainty
- ±0.17
- Depth from
- From location
- Station coverage gap
- 141°
- Stations used
- 13
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 0 in the 30 days before it.
After
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10858363. Read Wed, Sep 23, 2026, 3:22 AM UTC.