4.8

M4.8 Earthquake near western Indian-Antarctic RidgeMay 20, 2024

2024-05-20 12:57:34 UTC (2024-05-20) · approx. 8:57 PM UTC+8 local

MagnitudeM4.8(mb)
Time12:57 UTC8:57 PM UTC+8
Depth10.0 kmshallow crustal
Coordinates-50.087°, 119.897°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 20, 2024 at 12:57 UTC, a magnitude 4.8 shallow crustal earthquake struck near western Indian-Antarctic Ridge, at a depth of 10.0 km and coordinates -50.0868°, 119.8974°. This earthquake was detected by 53 seismic stations with good location accuracy and was assigned a USGS significance rating of 354, placing it among routine seismic activity.

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 -50.09°, 119.90°

Earthquake Details

Magnitude
4.8 mb
Depth
10.0 km
shallow crustal
Location
-50.0868°N
119.8974°E

Technical Information

Event ID
us6000n1a7
Event Type
earthquake
Status
✓ Reviewed
Significance
354
Stations Used
53
Azimuthal Gap
129.0°
Min Station Distance
16.936°
RMS Residual
1.14 sec
Last Updated
2024-08-06 02:10:17 UTC

Common Questions

How strong was the magnitude 4.8 earthquake near western Indian-Antarctic Ridge?

The magnitude 4.8 earthquake that struck near western Indian-Antarctic Ridge on May 20, 2024 at 12:57 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 -50.0868°, 119.8974°, which is near western Indian-Antarctic Ridge.

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: us6000n1a7). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, May 20, 2024). M4.8 Earthquake near western Indian-Antarctic RidgeMay 20, 2024. Retrieved August 6, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000n1a7/