Oregon earthquakes

M2.0 earthquake 17 km SSW of Chiloquin, Oregon

A magnitude 2.0 earthquake struck 17 km SSW of Chiloquin, Oregon on Tue, Sep 21, 1993, 6:18 AM PDT (13:18 UTC), -2 km (-1 mi) below the surface.

A larger quake followed: M3.0 31 km W of Klamath Falls, Oregon. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
2.0 (md), micro
Local time
UTC
1993-09-21 13:18:36 UTC
Depth
-1.6 km (-1.0 mi), shallow
Epicenter
42.429° N, 121.942° 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 1.7 km horizontally, 1.0 km in depth
Magnitude uncertainty
±0.05
Depth from
Operator assigned
Station coverage gap
316°, poorly surrounded by stations
Stations used
6

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 142 in the 60 days after this one and 57 in the 30 days before it.

After

The first 60 of 142.

Before

Earthquakes todayOregon earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10314178 (also filed as usp00060sn). Read Tue, Sep 22, 2026, 3:31 PM UTC.