California earthquakes

M2.9 earthquake 8 km NE of Mesa, California

A magnitude 2.9 earthquake struck 8 km NE of Mesa, California on Fri, Nov 3, 2017, 11:56 PM PDT (06:56 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.8 12km W of Toms Place, CA. 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
2.9 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2017-11-04 06:56:34 UTC
Depth
6.4 km (4.0 mi), shallow
Epicenter
37.480° N, 118.485° 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
2.85Md, durationNorthern California Seismic SystemPreferred · Final · ±0.187 · 45 stations
2.4ML, local (Richter)Nevada Seismological LaboratoryReviewed · ±0.39 · 11 stations

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, 0.7 km in depth
Magnitude uncertainty
±0.19
Depth from
From location
Station coverage gap
100°
Stations used
38

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 130 in the 60 days after this one and 191 in the 30 days before it.

After

The first 60 of 130.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc72918861 (also filed as nn00611491). Read Sun, Oct 4, 2026, 11:19 PM UTC.