M1.7 earthquake 14 km S of Markleeville, California

A magnitude 1.7 earthquake struck 14 km S of Markleeville, California on Sat, Sep 14, 2002, 3:56 AM PDT (10:56 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M2.9 11 km NE of Mono City, California. This one was a foreshock.

Map

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

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
1.68	Md, duration	Northern California Seismic System	Preferred · Final · 1 stations
1.4	ML, local (Richter)	Nevada Seismological Laboratory	Reviewed

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: 33 in the 60 days after this one and 8 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event nc21245357 (also filed as nn00056248). Read Mon, Oct 5, 2026, 2:46 PM UTC.