M4.3 Earthquake 78 km SSW of Singaparna, Indonesia — May 6, 2023
2023-05-06 18:57:00 UTC (2023-05-06) · approx. 1:57 AM UTC+7 local
On May 6, 2023 at 18:57 UTC, a magnitude 4.3 shallow crustal earthquake struck 78 km SSW of Singaparna, Indonesia, at a depth of 66.9 km and coordinates -8.0150°, 107.8583°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
This earthquake is part of an ongoing aftershock sequence following the magnitude 5.0 mainshock that occurred 25 days ago 90 km SSW of Singaparna, Indonesia. Since the mainshock, the USGS has recorded 3 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.
Earthquake Details
107.8583°E
Technical Information
Common Questions
How strong was the magnitude 4.3 earthquake near Singaparna, Indonesia?
The magnitude 4.3 earthquake that struck 78 km SSW of Singaparna, Indonesia on May 6, 2023 at 18:57 UTC had a depth of 66.9 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 4.3 earthquakes can continue for several days and gradually diminish over time.
Is this the same earthquake as the M5.0 one earlier?
No. This magnitude 4.3 earthquake is an aftershock of the larger magnitude 5.0 mainshock that occurred earlier 90 km SSW of Singaparna, Indonesia. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000kb4q). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, May 6, 2023). M4.3 Earthquake 78 km SSW of Singaparna, Indonesia — May 6, 2023. Retrieved July 15, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000kb4q/