M1.9 earthquake 9 km NNW of Riverside, Washington
A magnitude 1.9 earthquake struck 9 km NNW of Riverside, Washington on Thu, Jun 19, 1980, 9:33 AM PDT (16:33 UTC), 7 km (4 mi) below the surface.
A larger quake followed: M2.4 11 km WSW of Winthrop, 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
- 1980-06-19 16:33:36 UTC
- Depth
- 6.6 km (4.1 mi), shallow
- Epicenter
- 48.578° N, 119.568° 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 1.9 km horizontally, 1.2 km in depth
- Magnitude uncertainty
- ±0.21
- Depth from
- From location
- Station coverage gap
- 297°, 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: 1 in the 60 days after this one and 4 in the 30 days before it.
After
Before
- 2.910 km WSW of Tonasket, Washington · 16902 days ago · 11 km deep · 10 km away
- 2.09 km ENE of Conconully, Washington · 16902 days ago · 0 km deep · 5 km away
- 1.816 km WNW of Granite Falls, Washington · 16918 days ago · 8 km deep · 95 km away
- 2.26 km ENE of Bridgeport, Washington · 16920 days ago · 0 km deep · 61 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10080168. Read Sun, Sep 27, 2026, 12:23 AM UTC.