4.5

M4.5 Earthquake 123 km S of Dushanzi, ChinaSeptember 7, 2023

2023-09-07 19:26:27 UTC (2023-09-07) · approx. 1:26 AM UTC+6 local

MagnitudeM4.5(mb)
Time19:26 UTC1:26 AM UTC+6
Depth43.9 kmshallow crustal
Coordinates43.219°, 84.867°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 7, 2023 at 19:26 UTC, a magnitude 4.5 shallow crustal earthquake struck 123 km S of Dushanzi, China, at a depth of 43.9 km and coordinates 43.2189°, 84.8670°. This earthquake was detected by 77 seismic stations with good location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 43.22°, 84.87°

Earthquake Details

Magnitude
4.5 mb
Depth
43.9 km
shallow crustal
Location
43.2189°N
84.8670°E

Technical Information

Event ID
us7000ku0m
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
77
Azimuthal Gap
129.0°
Min Station Distance
3.932°
RMS Residual
0.80 sec
Last Updated
2023-11-17 19:47:50 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near Dushanzi, China?

The magnitude 4.5 earthquake that struck 123 km S of Dushanzi, China on September 7, 2023 at 19:26 UTC had a depth of 43.9 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 43.2189°, 84.8670°, which is 123 km S of Dushanzi, China.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000ku0m). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, September 7, 2023). M4.5 Earthquake 123 km S of Dushanzi, ChinaSeptember 7, 2023. Retrieved November 17, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000ku0m/