M5.1 Earthquake near off the west coast of northern Sumatra — June 21, 2021
2021-06-21 01:25:55 UTC (2021-06-21) · approx. 7:25 AM UTC+6 local
On June 21, 2021 at 01:25 UTC, a magnitude 5.1 shallow crustal earthquake struck near off the west coast of northern Sumatra, at a depth of 10.0 km and coordinates 0.9402°, 92.0109°.
Physical scale: An earthquake of magnitude 5.1 releases seismic energy equivalent to roughly 674 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.0 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
92.0109°E
Technical Information
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Common Questions
How strong was the magnitude 5.1 earthquake near off the west coast of northern Sumatra?
The magnitude 5.1 earthquake that struck near off the west coast of northern Sumatra on June 21, 2021 at 01:25 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 0.9402°, 92.0109°, which is near off the west coast of northern Sumatra.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.1 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000eeu2). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, June 21, 2021). M5.1 Earthquake near off the west coast of northern Sumatra — June 21, 2021. Retrieved August 27, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000eeu2/