2.7

M2.7 Earthquake 1 km N of Charlemagne, CanadaSeptember 24, 2023

2023-09-24 23:59:29 UTC (2023-09-24) · approx. 6:59 PM UTC-5 local

Felt by 10 people across nearby locations.

MagnitudeM2.7(mb_lg)
Time23:59 UTC6:59 PM UTC-5
Depth5.2 kmshallow crustal
Coordinates45.730°, -73.485°
Felt by10DYFI responses
Status✓ Reviewed by USGS

On September 24, 2023 at 23:59 UTC, a magnitude 2.7 shallow crustal earthquake struck 1 km N of Charlemagne, Canada, at a depth of 5.2 km and coordinates 45.7301°, -73.4849°. This earthquake was detected by 32 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 116, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 2.7 releases seismic energy equivalent to roughly 169 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 44 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 45.73°, -73.48°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 10 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 M2.7 earthquake near 1 km N of Charlemagne, Canada

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

Earthquake Details

Magnitude
2.7 mb_lg
Depth
5.2 km
shallow crustal
Location
45.7301°N
-73.4849°E
Felt Reports
10
DYFI responses
Community Intensity
3.4
CDI from reports

Technical Information

Event ID
us7000kxw7
Event Type
earthquake
Status
✓ Reviewed
Significance
116
Stations Used
32
Azimuthal Gap
82.0°
Min Station Distance
0.249°
RMS Residual
0.58 sec
Last Updated
2023-12-09 22:00:45 UTC

Common Questions

How strong was the magnitude 2.7 earthquake near Charlemagne, Canada?

The magnitude 2.7 earthquake that struck 1 km N of Charlemagne, Canada on September 24, 2023 at 23:59 UTC had a depth of 5.2 km. For context, this was a minor earthquake typically detected only by instruments.

Where did the earthquake occur?

The earthquake epicenter was located at 45.7301°, -73.4849°, which is 1 km N of Charlemagne, Canada.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 2.7 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000kxw7). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, September 24, 2023). M2.7 Earthquake 1 km N of Charlemagne, CanadaSeptember 24, 2023. Retrieved December 9, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000kxw7/