5.3

M5.3 Earthquake 197 km SSW of Pagar Alam, IndonesiaAugust 9, 2026

2026-08-09 15:15:03 UTC (2 hours ago) · approx. 10:15 PM UTC+7 local

MagnitudeM5.3(mww)
Time15:15 UTC10:15 PM UTC+7
Depth35.0 kmshallow crustal
Coordinates-5.778°, 102.887°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 9, 2026 at 15:15 UTC, a magnitude 5.3 shallow crustal earthquake struck 197 km SSW of Pagar Alam, Indonesia, at a depth of 35.0 km and coordinates -5.7782°, 102.8866°. This earthquake was detected by 67 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 432, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 5.3 releases seismic energy equivalent to roughly 1 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.7 km — 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

Map showing earthquake epicenter at -5.78°, 102.89°

Earthquake Details

Magnitude
5.3 mww
Depth
35.0 km
shallow crustal
Location
-5.7782°N
102.8866°E

Technical Information

Event ID
us6000tjfj
Event Type
earthquake
Status
✓ Reviewed
Significance
432
Stations Used
67
Azimuthal Gap
71.0°
Min Station Distance
1.410°
RMS Residual
0.76 sec
Last Updated
2026-08-09 15:34:58 UTC

Common Questions

How strong was the magnitude 5.3 earthquake near Pagar Alam, Indonesia?

The magnitude 5.3 earthquake that struck 197 km SSW of Pagar Alam, Indonesia on August 9, 2026 at 15:15 UTC had a depth of 35.0 km. For context, this was a moderate earthquake that could be widely felt.

Where did the earthquake occur?

The earthquake epicenter was located at -5.7782°, 102.8866°, which is 197 km SSW of Pagar Alam, Indonesia. View all earthquakes in Indonesia.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.3 earthquakes can continue for days to weeks 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 5.3 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us6000tjfj). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 9, 2026). M5.3 Earthquake 197 km SSW of Pagar Alam, IndonesiaAugust 9, 2026. Retrieved August 9, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tjfj/