M2.7 earthquake 19 km WNW of Klamath Falls, Oregon

A magnitude 2.7 earthquake struck 19 km WNW of Klamath Falls, Oregon on Tue, Sep 21, 1993, 10:45 PM PDT (05:45 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.1 23 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.

The USGS’s account of the effects of this earthquake.

Multiple event. Held to mainshock location.

From the USGS event page for usp00060uc. U.S. Geological Survey text and figures are in the public domain.

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: 121 in the 60 days after this one and 91 in the 30 days before it.

The first 60 of 121.

From the USGS Earthquake Hazards Program and its partner networks, event usp00060uc. Read Sun, Oct 4, 2026, 7:58 AM UTC.