4.8

M4.8 Earthquake 182 km NNW of Likisá, Timor LesteSeptember 11, 2021

2021-09-11 09:40:12 UTC (2021-09-11) · approx. 5:40 PM UTC+8 local

MagnitudeM4.8(mb)
Time09:40 UTC5:40 PM UTC+8
Depth538.7 kmdeep-focus
Coordinates-6.978°, 124.988°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 11, 2021 at 09:40 UTC, a magnitude 4.8 deep-focus earthquake struck 182 km NNW of Likisá, Timor Leste, at a depth of 538.7 km and coordinates -6.9777°, 124.9878°.

Physical scale: An earthquake of magnitude 4.8 releases seismic energy equivalent to roughly 239 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.2 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -6.98°, 124.99°

Earthquake Details

Magnitude
4.8 mb
Depth
538.7 km
deep-focus
Location
-6.9777°N
124.9878°E

Technical Information

Event ID
us7000fa9t
Event Type
earthquake
Status
✓ Reviewed
Significance
354
Azimuthal Gap
37.0°
Min Station Distance
2.850°
RMS Residual
0.53 sec
Last Updated
2021-11-23 15:09:47 UTC

Common Questions

How strong was the magnitude 4.8 earthquake near Likisá, Timor Leste?

The magnitude 4.8 earthquake that struck 182 km NNW of Likisá, Timor Leste on September 11, 2021 at 09:40 UTC had a depth of 538.7 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -6.9777°, 124.9878°, which is 182 km NNW of Likisá, Timor Leste.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.8 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000fa9t). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, September 11, 2021). M4.8 Earthquake 182 km NNW of Likisá, Timor LesteSeptember 11, 2021. Retrieved November 23, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000fa9t/