2.1

M2.1 Earthquake 3km ESE of San Jacinto, CAOctober 26, 2022

2022-10-26 18:46:23 UTC (2022-10-26) · approx. 10:46 AM UTC-8 local

MagnitudeM2.1(ml)
Time18:46 UTC10:46 AM UTC-8
Depth12.5 kmshallow crustal
Coordinates33.778°, -116.924°
Felt by2DYFI responses
Status✓ Reviewed by USGS

On October 26, 2022 at 18:46 UTC, a magnitude 2.1 shallow crustal earthquake struck 3km ESE of San Jacinto, CA, at a depth of 12.5 km and coordinates 33.7775°, -116.9243°.

Physical scale: An earthquake of magnitude 2.1 releases seismic energy equivalent to roughly 19.2 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 16 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 33.78°, -116.92°

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 3km ESE of San Jacinto, CA

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

Earthquake Details

Magnitude
2.1 ml
Depth
12.5 km
shallow crustal
Location
33.7775°N
-116.9243°E
Felt Reports
2
DYFI responses
Community Intensity
2.0
CDI from reports

Technical Information

Event ID
ci40366424
Event Type
earthquake
Status
✓ Reviewed
Significance
66
Stations Used
73
Azimuthal Gap
21.0°
Min Station Distance
0.090°
RMS Residual
0.16 sec
Last Updated
2022-10-26 20:11:22 UTC

Common Questions

How strong was the magnitude 2.1 earthquake near San Jacinto, CA?

The magnitude 2.1 earthquake that struck 3km ESE of San Jacinto, CA on October 26, 2022 at 18:46 UTC had a depth of 12.5 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: ci40366424). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, October 26, 2022). M2.1 Earthquake 3km ESE of San Jacinto, CAOctober 26, 2022. Retrieved October 26, 2022 from https://www.earthquaketracker.org/earthquakes/event/ci40366424/