4.3

M4.3 Earthquake near western Indian-Antarctic Ridge — April 23, 2024

2024-04-23 17:29:02 UTC (2024-04-23) · approx. 1:29 AM UTC+8 local

MagnitudeM4.3(mb)
Time17:29 UTC≈ 1:29 AM UTC+8
Depth10.0 kmshallow crustal
Coordinates-49.996°, 114.314°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 23, 2024 at 17:29 UTC, a magnitude 4.3 shallow crustal earthquake struck near western Indian-Antarctic Ridge, at a depth of 10.0 km and coordinates -49.9963°, 114.3140°.

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 -50.00°, 114.31°

Earthquake Details

Magnitude
4.3 mb
Depth
10.0 km
shallow crustal
Location
-49.9963°N
114.3140°E

Technical Information

Event ID
us6000mv91
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
14
Azimuthal Gap
158.0°
Min Station Distance
16.445°
RMS Residual
0.54 sec
Last Updated
2024-07-02 22:12:45 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 April 23, 2024 at 17:29 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: us6000mv91). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, April 23, 2024). M4.3 Earthquake near western Indian-Antarctic Ridge — April 23, 2024. Retrieved July 2, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000mv91/