M4.9 Earthquake 271 km NNE of Saga, China — September 13, 2024
2024-09-13 18:29:56 UTC (2024-09-13) · approx. 12:29 AM UTC+6 local
Felt by 1 person across nearby locations.
On September 13, 2024 at 18:29 UTC, a magnitude 4.9 shallow crustal earthquake struck 271 km NNE of Saga, China, at a depth of 37.7 km and coordinates 31.4862°, 86.5483°. This earthquake was detected by 116 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 369, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.
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.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
86.5483°E
Technical Information
Common Questions
How strong was the magnitude 4.9 earthquake near Saga, China?
The magnitude 4.9 earthquake that struck 271 km NNE of Saga, China on September 13, 2024 at 18:29 UTC had a depth of 37.7 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 31.4862°, 86.5483°, which is 271 km NNE of Saga, China.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.
Actions
Location
Authoritative source: USGS event page (event ID: us7000ndmh). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, September 13, 2024). M4.9 Earthquake 271 km NNE of Saga, China — September 13, 2024. Retrieved November 21, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000ndmh/