2.2

M2.2 Earthquake 1 km S of Benton, IllinoisJuly 10, 2022

2022-07-10 22:31:23 UTC (2022-07-10) · approx. 4:31 PM UTC-6 local

Felt by 11 people across nearby locations.

MagnitudeM2.2(md)
Time22:31 UTC4:31 PM UTC-6
Depth1.9 kmshallow crustal
Coordinates37.981°, -88.922°
Felt by11DYFI responses
Status✓ Reviewed by USGS

On July 10, 2022 at 22:31 UTC, a magnitude 2.2 shallow crustal earthquake struck 1 km S of Benton, Illinois, at a depth of 1.9 km and coordinates 37.9810°, -88.9223°. This earthquake was detected by 25 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 81, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 2.2 releases seismic energy equivalent to roughly 34.5 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 21 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 37.98°, -88.92°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 11 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 M2.2 earthquake near 1 km S of Benton, Illinois

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

Earthquake Details

Magnitude
2.2 md
Depth
1.9 km
shallow crustal
Location
37.9810°N
-88.9223°E
Felt Reports
11
DYFI responses
Community Intensity
3.7
CDI from reports

Technical Information

Event ID
nm60402661
Event Type
earthquake
Status
✓ Reviewed
Significance
81
Stations Used
25
Azimuthal Gap
51.0°
Min Station Distance
0.354°
RMS Residual
0.28 sec
Last Updated
2022-09-24 21:26:00 UTC

Common Questions

How strong was the magnitude 2.2 earthquake near Benton, Illinois?

The magnitude 2.2 earthquake that struck 1 km S of Benton, Illinois on July 10, 2022 at 22:31 UTC had a depth of 1.9 km. For context, this was a minor earthquake typically detected only by instruments.

Where did the earthquake occur?

The earthquake epicenter was located at 37.9810°, -88.9223°, which is 1 km S of Benton, Illinois.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 2.2 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: nm60402661). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, July 10, 2022). M2.2 Earthquake 1 km S of Benton, IllinoisJuly 10, 2022. Retrieved September 24, 2022 from https://www.earthquaketracker.org/earthquakes/event/nm60402661/