2.1

M2.1 Earthquake 8 km WSW of Gilroy, CAFebruary 24, 2025

2025-02-24 19:51:58 UTC (2025-02-24) · approx. 11:51 AM UTC-8 local

MagnitudeM2.1(md)
Time19:51 UTC11:51 AM UTC-8
Depth6.0 kmshallow crustal
Coordinates36.975°, -121.644°
Felt by2DYFI responses
Status✓ Reviewed by USGS

On February 24, 2025 at 19:51 UTC, a magnitude 2.1 shallow crustal earthquake struck 8 km WSW of Gilroy, CA, at a depth of 6.0 km and coordinates 36.9748°, -121.6437°.

Physical scale: An earthquake of magnitude 2.1 releases seismic energy equivalent to roughly 23.6 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 18 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 36.97°, -121.64°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 2 citizen responses 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 8 km WSW of Gilroy, CA

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

Earthquake Details

Magnitude
2.1 md
Depth
6.0 km
shallow crustal
Location
36.9748°N
-121.6437°E
Felt Reports
2
DYFI responses
Community Intensity
2.2
CDI from reports

Technical Information

Event ID
nc75138466
Event Type
earthquake
Status
✓ Reviewed
Significance
70
Stations Used
67
Azimuthal Gap
40.0°
Min Station Distance
0.046°
RMS Residual
0.16 sec
Last Updated
2025-03-04 04:27:18 UTC

Common Questions

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

The magnitude 2.1 earthquake that struck 8 km WSW of Gilroy, CA on February 24, 2025 at 19:51 UTC had a depth of 6.0 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.

Understanding This Data

Magnitude 2.1 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: nc75138466). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, February 24, 2025). M2.1 Earthquake 8 km WSW of Gilroy, CAFebruary 24, 2025. Retrieved March 4, 2025 from https://www.earthquaketracker.org/earthquakes/event/nc75138466/