3.1

M3.1 Earthquake 25 km E of Maricopa, CAAugust 7, 2024

2024-08-07 22:16:58 UTC (2024-08-07) · approx. 2:16 PM UTC-8 local

MagnitudeM3.1(ml)
Time22:16 UTC2:16 PM UTC-8
Depth12.2 kmshallow crustal
Coordinates35.097°, -119.131°
Felt by6DYFI responses
Status✓ Reviewed by USGS

On August 7, 2024 at 22:16 UTC, a magnitude 3.1 shallow crustal earthquake struck 25 km E of Maricopa, CA, at a depth of 12.2 km and coordinates 35.0975°, -119.1310°.

Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 801 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 90 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 35.10°, -119.13°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 6 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 M3.1 earthquake near 25 km E of Maricopa, CA

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

Earthquake Details

Magnitude
3.1 ml
Depth
12.2 km
shallow crustal
Location
35.0975°N
-119.1310°E
Felt Reports
6
DYFI responses
Community Intensity
2.7
CDI from reports

Technical Information

Event ID
ci40868784
Event Type
earthquake
Status
✓ Reviewed
Significance
154
Stations Used
62
Azimuthal Gap
25.0°
Min Station Distance
0.055°
RMS Residual
0.30 sec
Last Updated
2024-10-24 17:57:20 UTC

Common Questions

How strong was the magnitude 3.1 earthquake near Maricopa, CA?

The magnitude 3.1 earthquake that struck 25 km E of Maricopa, CA on August 7, 2024 at 22:16 UTC had a depth of 12.2 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 3.1 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.1 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: ci40868784). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, August 7, 2024). M3.1 Earthquake 25 km E of Maricopa, CAAugust 7, 2024. Retrieved October 24, 2024 from https://www.earthquaketracker.org/earthquakes/event/ci40868784/