3.2

M3.2 Earthquake 25 km E of San Ardo, CAJune 25, 2024

2024-06-25 21:20:11 UTC (2024-06-25) · approx. 1:20 PM UTC-8 local

MagnitudeM3.2(ml)
Time21:20 UTC1:20 PM UTC-8
Depth5.9 kmshallow crustal
Coordinates36.075°, -120.640°
Felt by7DYFI responses· max MMI 3.7
Status✓ Reviewed by USGS

On June 25, 2024 at 21:20 UTC, a magnitude 3.2 shallow crustal earthquake struck 25 km E of San Ardo, CA, at a depth of 5.9 km and coordinates 36.0750°, -120.6400°. The earthquake was reported felt by 7 peopleacross nearby locations, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 3.7 (light).

Physical scale: An earthquake of magnitude 3.2 releases seismic energy equivalent to roughly 1.1 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 104 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 36.08°, -120.64°

ShakeMap — predicted shaking intensity

Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.

USGS ShakeMap intensity contours for the M3.2 earthquake near 25 km E of San Ardo, CA

Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 7 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 M3.2 earthquake near 25 km E of San Ardo, CA

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

Earthquake Details

Magnitude
3.2 ml
Depth
5.9 km
shallow crustal
Location
36.0750°N
-120.6400°E
Felt Reports
7
DYFI responses
Intensity (MMI)
3.7
light
Community Intensity
3.1
CDI from reports

Technical Information

Event ID
nc75027251
Event Type
earthquake
Status
✓ Reviewed
Significance
164
Stations Used
59
Azimuthal Gap
61.0°
Min Station Distance
0.036°
RMS Residual
0.08 sec
Last Updated
2024-09-04 21:57:41 UTC

Common Questions

How strong was the magnitude 3.2 earthquake near San Ardo, CA?

The magnitude 3.2 earthquake that struck 25 km E of San Ardo, CA on June 25, 2024 at 21:20 UTC had a depth of 5.9 km. It was felt by 7 people with maximum shaking intensity of MMI 3.7 (light). 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 3.2 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.2 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: nc75027251). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, June 25, 2024). M3.2 Earthquake 25 km E of San Ardo, CAJune 25, 2024. Retrieved September 4, 2024 from https://www.earthquaketracker.org/earthquakes/event/nc75027251/