4.6

M4.6 Earthquake 15 km NW of Banjar Wangsian, Indonesia — September 20, 2024

2024-09-20 23:26:16 UTC (2024-09-20) · approx. 7:26 AM UTC+8 local

Felt by 200 people across surrounding communities.

MagnitudeM4.6(mb)
Time23:26 UTC≈ 7:26 AM UTC+8
Depth10.0 kmshallow crustal
Coordinates-8.378°, 115.341°
Felt by200DYFI responses
Status✓ Reviewed by USGS

On September 20, 2024 at 23:26 UTC, a magnitude 4.6 shallow crustal earthquake struck 15 km NW of Banjar Wangsian, Indonesia, at a depth of 10.0 km and coordinates -8.3784°, 115.3408°. This earthquake was detected by 52 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 426, 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

Map showing earthquake epicenter at -8.38°, 115.34°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 200 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M4.6 earthquake near 15 km NW of Banjar Wangsian, Indonesia

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
4.6 mb
Depth
10.0 km
shallow crustal
Location
-8.3784°N
115.3408°E
Felt Reports
200
DYFI responses
Community Intensity
5.0
CDI from reports

Technical Information

Event ID
us6000ntee
Event Type
earthquake
Status
✓ Reviewed
Significance
426
Stations Used
52
Azimuthal Gap
39.0°
Min Station Distance
1.180°
RMS Residual
0.57 sec
Last Updated
2024-11-23 23:26:29 UTC

Common Questions

How strong was the magnitude 4.6 earthquake near Banjar Wangsian, Indonesia?

The magnitude 4.6 earthquake that struck 15 km NW of Banjar Wangsian, Indonesia on September 20, 2024 at 23:26 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 -8.3784°, 115.3408°, which is 15 km NW of Banjar Wangsian, 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.

Actions

View on USGSDid You Feel It?

Location

Indonesia
View all Indonesia earthquakes

Authoritative source: USGS event page (event ID: us6000ntee). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, September 20, 2024). M4.6 Earthquake 15 km NW of Banjar Wangsian, Indonesia — September 20, 2024. Retrieved November 23, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000ntee/