2.1

M2.1 Earthquake 6 km SE of Floriston, CaliforniaOctober 14, 2022

2022-10-14 21:41:50 UTC (2022-10-14) · approx. 1:41 PM UTC-8 local

MagnitudeM2.1(ml)
Time21:41 UTC1:41 PM UTC-8
Depth6.5 kmshallow crustal
Coordinates39.355°, -119.966°
Felt by1DYFI response
Status✓ Reviewed by USGS

On October 14, 2022 at 21:41 UTC, a magnitude 2.1 shallow crustal earthquake struck 6 km SE of Floriston, California, at a depth of 6.5 km and coordinates 39.3545°, -119.9663°.

Physical scale: An earthquake of magnitude 2.1 releases seismic energy equivalent to roughly 21.3 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 17 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 39.35°, -119.97°

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 6 km SE of Floriston, California

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

Earthquake Details

Magnitude
2.1 ml
Depth
6.5 km
shallow crustal
Location
39.3545°N
-119.9663°E
Felt Reports
1
DYFI responses
Community Intensity
2.2
CDI from reports

Technical Information

Event ID
nn00849286
Event Type
earthquake
Status
✓ Reviewed
Significance
68
Stations Used
29
Azimuthal Gap
49.5°
Min Station Distance
0.076°
RMS Residual
0.14 sec
Last Updated
2022-10-15 01:45:29 UTC

Common Questions

How strong was the magnitude 2.1 earthquake near Floriston, California?

The magnitude 2.1 earthquake that struck 6 km SE of Floriston, California on October 14, 2022 at 21:41 UTC had a depth of 6.5 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: nn00849286). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, October 14, 2022). M2.1 Earthquake 6 km SE of Floriston, CaliforniaOctober 14, 2022. Retrieved October 15, 2022 from https://www.earthquaketracker.org/earthquakes/event/nn00849286/