M1.5 earthquake 7 km WSW of Arlington, Oregon
A magnitude 1.5 earthquake struck 7 km WSW of Arlington, Oregon on Wed, Sep 18, 2002, 10:17 AM PDT (17:17 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M2.7 8 km ESE of Condon, Oregon. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.5 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 2002-09-18 17:17:58 UTC
- Depth
- 10.4 km (6.5 mi), shallow
- Epicenter
- 45.683° N, 120.280° W
- Region
- Oregon
- 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, 2.0 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 76°
- Stations used
- 17
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 2 in the 30 days before it.
After
- 2.39 km ESE of Condon, Oregon · 8750 days ago · 2 km deep · 57 km away
- 2.27 km ESE of Condon, Oregon · 8745 days ago · -1 km deep · 56 km away
- 2.78 km ESE of Condon, Oregon · 8745 days ago · 1 km deep · 56 km away
- 2.36 km ESE of Condon, Oregon · 8745 days ago · 2 km deep · 54 km away
- 2.510 km ESE of Condon, Oregon · 8745 days ago · 4 km deep · 58 km away
- 1.615 km NW of Shaniko, Oregon · 8736 days ago · 20 km deep · 78 km away
- 1.816 km NE of Klickitat, Washington · 8733 days ago · 8 km deep · 62 km away
- 1.912 km NNE of Roosevelt, Washington · 8730 days ago · 12 km deep · 21 km away
Before
Earthquakes todayOregon earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10564853. Read Sun, Oct 4, 2026, 4:01 PM UTC.