M4.4 Earthquake 30 km SSW of Negara, Indonesia — September 30, 2023
2023-09-30 20:56:36 UTC (2023-09-30) · approx. 4:56 AM UTC+8 local
On September 30, 2023 at 20:56 UTC, a magnitude 4.4 intermediate depth earthquake struck 30 km SSW of Negara, Indonesia, at a depth of 113.0 km and coordinates -8.6239°, 114.5620°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
114.5620°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.4 earthquake near Negara, Indonesia?
The magnitude 4.4 earthquake that struck 30 km SSW of Negara, Indonesia on September 30, 2023 at 20:56 UTC had a depth of 113.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000ld72). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, September 30, 2023). M4.4 Earthquake 30 km SSW of Negara, Indonesia — September 30, 2023. Retrieved December 9, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000ld72/