M5.0 Earthquake near southeast Indian Ridge — March 20, 2021
2021-03-20 19:12:10 UTC (2021-03-20) · approx. 3:12 AM UTC+8 local
On March 20, 2021 at 19:12 UTC, a magnitude 5.0 shallow crustal earthquake struck near southeast Indian Ridge, at a depth of 10.0 km and coordinates -50.3367°, 112.6992°.
Physical scale: An earthquake of magnitude 5.0 releases seismic energy equivalent to roughly 477 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.7 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
112.6992°E
Technical Information
Common Questions
How strong was the magnitude 5.0 earthquake near southeast Indian Ridge?
The magnitude 5.0 earthquake that struck near southeast Indian Ridge on March 20, 2021 at 19:12 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at -50.3367°, 112.6992°, which is near southeast Indian Ridge.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.0 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Location
Authoritative source: USGS event page (event ID: us6000dwt5). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, March 20, 2021). M5.0 Earthquake near southeast Indian Ridge — March 20, 2021. Retrieved December 22, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000dwt5/