M1.9 earthquake 4 km NNE of Willapa, Washington
A magnitude 1.9 earthquake struck 4 km NNE of Willapa, Washington on Mon, Jul 9, 1973, 2:58 PM PDT (21:58 UTC), 20 km (12 mi) below the surface.
A larger quake followed: M2.4 10 km WNW of Allyn, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.9 (md), micro
- Local time
- UTC
- 1973-07-09 21:58:24 UTC
- Depth
- 19.8 km (12.3 mi), shallow
- Epicenter
- 46.712° N, 123.635° 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 1.1 km horizontally, 2.2 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- From location
- Station coverage gap
- 284°, poorly surrounded by stations
- Stations used
- 4
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 2.410 km WNW of Allyn, Washington · 19390 days ago · 14 km deep · 92 km away
- 1.70 km SW of Allyn, Washington · 19390 days ago · 22 km deep · 96 km away
- 1.69 km N of Hoodsport, Washington · 19390 days ago · 40 km deep · 95 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10856518. Read Sun, Sep 27, 2026, 10:03 PM UTC.