California earthquakes

M2.5 earthquake 5 km SSE of Markleeville, California

A magnitude 2.5 earthquake struck 5 km SSE of Markleeville, California on Fri, Jul 26, 2002, 7:44 PM PDT (02:44 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M3.6 6 km S of Bridgeport, California. 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
2.5 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2002-07-27 02:44:45 UTC
Depth
-1.0 km (-0.6 mi), shallow
Epicenter
38.646° N, 119.767° W
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

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.ScaleComputed byNotes
2.45Md, durationNorthern California Seismic SystemPreferred · Final · ±0.17 · 19 stations
2.0ML, local (Richter)Nevada Seismological LaboratoryReviewed

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 0.3 km horizontally, 3.2 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
124°
Stations used
33

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 30 in the 60 days after this one and 11 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc21237607 (also filed as nn00053619). Read Mon, Oct 5, 2026, 12:45 PM UTC.