M1.5 earthquake 23 km SW of Chiloquin, Oregon

A magnitude 1.5 earthquake struck 23 km SW of Chiloquin, Oregon on Sat, Oct 23, 1993, 5:39 AM PDT (12:39 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M2.8 20 km WNW of Klamath Falls, Oregon. This one was a foreshock.

Map

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

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 198 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 198.

From the USGS Earthquake Hazards Program and its partner networks, event uw10338318. Read Wed, Sep 23, 2026, 5:06 AM UTC.