2.1

M2.1 Earthquake 4 km W of Dublin, CAMarch 22, 2025

2025-03-22 22:30:17 UTC (2025-03-22) · approx. 2:30 PM UTC-8 local

MagnitudeM2.1(md)
Time22:30 UTC2:30 PM UTC-8
Depth10.2 kmshallow crustal
Coordinates37.701°, -121.985°
Felt by1DYFI response
Status✓ Reviewed by USGS

On March 22, 2025 at 22:30 UTC, a magnitude 2.1 shallow crustal earthquake struck 4 km W of Dublin, CA, at a depth of 10.2 km and coordinates 37.7013°, -121.9850°.

Physical scale: An earthquake of magnitude 2.1 releases seismic energy equivalent to roughly 25.3 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 37.70°, -121.98°

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 4 km W of Dublin, CA

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

Earthquake Details

Magnitude
2.1 md
Depth
10.2 km
shallow crustal
Location
37.7013°N
-121.9850°E
Felt Reports
1
DYFI responses
Community Intensity
1.0
CDI from reports

Technical Information

Event ID
nc75153462
Event Type
earthquake
Status
✓ Reviewed
Significance
71
Stations Used
87
Azimuthal Gap
26.0°
Min Station Distance
0.042°
RMS Residual
0.13 sec
Last Updated
2025-03-27 12:27:18 UTC

Common Questions

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

The magnitude 2.1 earthquake that struck 4 km W of Dublin, CA on March 22, 2025 at 22:30 UTC had a depth of 10.2 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: nc75153462). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, March 22, 2025). M2.1 Earthquake 4 km W of Dublin, CAMarch 22, 2025. Retrieved March 27, 2025 from https://www.earthquaketracker.org/earthquakes/event/nc75153462/