4.3

M4.3 Earthquake near western Indian-Antarctic RidgeDecember 3, 2024

2024-12-03 18:33:43 UTC (2024-12-03) · approx. 2:33 AM UTC+8 local

MagnitudeM4.3(mb)
Time18:33 UTC2:33 AM UTC+8
Depth10.0 kmshallow crustal
Coordinates-50.220°, 114.264°
Felt byNo felt reports
Status✓ Reviewed by USGS

On December 3, 2024 at 18:33 UTC, a magnitude 4.3 shallow crustal earthquake struck near western Indian-Antarctic Ridge, at a depth of 10.0 km and coordinates -50.2202°, 114.2637°.

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 -50.22°, 114.26°

Earthquake Details

Magnitude
4.3 mb
Depth
10.0 km
shallow crustal
Location
-50.2202°N
114.2637°E

Technical Information

Event ID
us7000nzbu
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
11
Azimuthal Gap
148.0°
Min Station Distance
21.168°
RMS Residual
0.40 sec
Last Updated
2025-02-15 18:31:22 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near western Indian-Antarctic Ridge?

The magnitude 4.3 earthquake that struck near western Indian-Antarctic Ridge on December 3, 2024 at 18:33 UTC had a depth of 10.0 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: us7000nzbu). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, December 3, 2024). M4.3 Earthquake near western Indian-Antarctic RidgeDecember 3, 2024. Retrieved February 15, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000nzbu/