California earthquakes

M2.6 earthquake 4km NNE of Almanor, CA

A magnitude 2.6 earthquake struck 4km NNE of Almanor, CA on Sun, Mar 7, 2021, 9:11 AM PST (17:11 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M3.0 13km W of Shingletown, 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: 2.6 (Md, duration), micro
Magnitude from: Northern California Seismic System
Local time: Sun, Mar 7, 2021, 9:11 AM PST
UTC: 2021-03-07 17:11:45 UTC
Depth: 9.3 km (5.8 mi), shallow
Epicenter: 40.254° N, 121.162° W
Region: California
Felt reports: 5
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.	Scale	Computed by	Notes
2.58	Md, duration	Northern California Seismic System	Preferred · Final · ±0.12 · 36 stations
2.4	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.055 · 44 stations
2.4	ML, local (Richter)	Nevada Seismological Laboratory	Reviewed · ±0.25 · 5 stations

Did you feel it?

5 people reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 0.4 km horizontally, 0.6 km in depth
Magnitude uncertainty: ±0.12
Depth from: From location
Station coverage gap: 80°
Stations used: 18

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 27 in the 60 days after this one and 17 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73532516 (also filed as nn00802137, us7000dgx1). Read Sat, Oct 3, 2026, 11:32 AM UTC.