4.3

M4.3 Earthquake 94 km SW of Pelabuhanratu, IndonesiaOctober 29, 2023

2023-10-29 19:49:34 UTC (2023-10-29) · approx. 2:49 AM UTC+7 local

MagnitudeM4.3(mb)
Time19:49 UTC2:49 AM UTC+7
Depth36.9 kmshallow crustal
Coordinates-7.478°, 105.846°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 29, 2023 at 19:49 UTC, a magnitude 4.3 shallow crustal earthquake struck 94 km SW of Pelabuhanratu, Indonesia, at a depth of 36.9 km and coordinates -7.4783°, 105.8459°.

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.

Map showing earthquake epicenter at -7.48°, 105.85°

Earthquake Details

Magnitude
4.3 mb
Depth
36.9 km
shallow crustal
Location
-7.4783°N
105.8459°E

Technical Information

Event ID
us7000l8dx
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
30
Azimuthal Gap
127.0°
Min Station Distance
1.789°
RMS Residual
0.81 sec
Last Updated
2024-01-10 06:01:12 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Pelabuhanratu, Indonesia?

The magnitude 4.3 earthquake that struck 94 km SW of Pelabuhanratu, Indonesia on October 29, 2023 at 19:49 UTC had a depth of 36.9 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.

Understanding This Data

Magnitude 4.3 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000l8dx). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, October 29, 2023). M4.3 Earthquake 94 km SW of Pelabuhanratu, IndonesiaOctober 29, 2023. Retrieved January 10, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000l8dx/