2.1

M2.1 Earthquake 15 km WNW of Malibu, CAMay 9, 2025

2025-05-09 21:44:02 UTC (2025-05-09) · approx. 1:44 PM UTC-8 local

MagnitudeM2.1(ml)
Time21:44 UTC1:44 PM UTC-8
Depth12.6 kmshallow crustal
Coordinates34.046°, -118.965°
Felt by3DYFI responses
Status✓ Reviewed by USGS

On May 9, 2025 at 21:44 UTC, a magnitude 2.1 shallow crustal earthquake struck 15 km WNW of Malibu, CA, at a depth of 12.6 km and coordinates 34.0458°, -118.9645°.

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 34.05°, -118.96°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 3 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 15 km WNW of Malibu, CA

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

Earthquake Details

Magnitude
2.1 ml
Depth
12.6 km
shallow crustal
Location
34.0458°N
-118.9645°E
Felt Reports
3
DYFI responses
Community Intensity
2.2
CDI from reports

Technical Information

Event ID
ci41149568
Event Type
earthquake
Status
✓ Reviewed
Significance
72
Stations Used
49
Azimuthal Gap
155.0°
RMS Residual
0.21 sec
Last Updated
2025-05-20 21:31:04 UTC

Common Questions

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

The magnitude 2.1 earthquake that struck 15 km WNW of Malibu, CA on May 9, 2025 at 21:44 UTC had a depth of 12.6 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: ci41149568). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, May 9, 2025). M2.1 Earthquake 15 km WNW of Malibu, CAMay 9, 2025. Retrieved May 20, 2025 from https://www.earthquaketracker.org/earthquakes/event/ci41149568/