M4.6 Earthquake 220 km S of Pagar Alam, Indonesia — July 29, 2026
2026-07-29 22:16:25 UTC (2026-07-29) · approx. 5:16 AM UTC+7 local
On July 29, 2026 at 22:16 UTC, a magnitude 4.6 shallow crustal earthquake struck 220 km S of Pagar Alam, Indonesia, at a depth of 10.0 km and coordinates -6.0097°, 103.0313°. This earthquake was detected by 22 seismic stations with good location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.
The epicenter is located in Indonesia, a region characterized by the convergence of the Indo-Australian, Eurasian, and Philippine Sea plates, forming the Sunda-Banda arc system. The nearest mapped fault system is the Sunda megathrust. View all earthquakes in Indonesia.
Learn more: Magnitude scale · Aftershock sequences
Earthquake Details
103.0313°E
Technical Information
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Common Questions
How strong was the magnitude 4.6 earthquake near Pagar Alam, Indonesia?
The magnitude 4.6 earthquake that struck 220 km S of Pagar Alam, Indonesia on July 29, 2026 at 22:16 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -6.0097°, 103.0313°, which is 220 km S of Pagar Alam, Indonesia. View all earthquakes in Indonesia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
Has Indonesia had earthquakes this big before?
The largest recorded earthquake in Indonesia was the M9.1 Indian Ocean earthquake of December 26, 2004. Today's magnitude 4.6 event is significantly smaller than that historical record.
Authoritative source: USGS event page (event ID: us6000thuh). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, July 29, 2026). M4.6 Earthquake 220 km S of Pagar Alam, Indonesia — July 29, 2026. Retrieved October 13, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000thuh/