M4.0 Earthquake 47 km E of Margherita, India — October 20, 2020
2020-10-20 19:55:49 UTC (2020-10-20) · approx. 1:55 AM UTC+6 local
On October 20, 2020 at 19:55 UTC, a magnitude 4.0 shallow crustal earthquake struck 47 km E of Margherita, India, at a depth of 58.0 km and coordinates 27.2257°, 96.1444°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
96.1444°E
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Common Questions
How strong was the magnitude 4.0 earthquake near Margherita, India?
The magnitude 4.0 earthquake that struck 47 km E of Margherita, India on October 20, 2020 at 19:55 UTC had a depth of 58.0 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 4.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000caa9). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, October 20, 2020). M4.0 Earthquake 47 km E of Margherita, India — October 20, 2020. Retrieved December 29, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000caa9/