2.1

M2.1 Earthquake 10 km NNE of Talmage, CAFebruary 27, 2026

2026-02-27 22:13:18 UTC (2026-02-27) · approx. 2:13 PM UTC-8 local

MagnitudeM2.1(md)
Time22:13 UTC2:13 PM UTC-8
Depth4.3 kmshallow crustal
Coordinates39.209°, -123.115°
Felt by1DYFI response
Status✓ Reviewed by USGS

On February 27, 2026 at 22:13 UTC, a magnitude 2.1 shallow crustal earthquake struck 10 km NNE of Talmage, CA, at a depth of 4.3 km and coordinates 39.2092°, -123.1145°.

Physical scale: An earthquake of magnitude 2.1 releases seismic energy equivalent to roughly 19.9 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 16 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 39.21°, -123.11°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M2.1 earthquake near 10 km NNE of Talmage, CA

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
2.1 md
Depth
4.3 km
shallow crustal
Location
39.2092°N
-123.1145°E
Felt Reports
1
DYFI responses
Community Intensity
0.0
CDI from reports

Technical Information

Event ID
nc75319942
Event Type
earthquake
Status
✓ Reviewed
Significance
67
Stations Used
66
Azimuthal Gap
31.0°
Min Station Distance
0.084°
RMS Residual
0.11 sec
Last Updated
2026-03-07 22:12:18 UTC

Common Questions

How strong was the magnitude 2.1 earthquake near Talmage, CA?

The magnitude 2.1 earthquake that struck 10 km NNE of Talmage, CA on February 27, 2026 at 22:13 UTC had a depth of 4.3 km. For context, this was a minor earthquake typically detected only by instruments.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 2.1 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: nc75319942). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, February 27, 2026). M2.1 Earthquake 10 km NNE of Talmage, CAFebruary 27, 2026. Retrieved May 12, 2026 from https://www.earthquaketracker.org/earthquakes/event/nc75319942/