M4.4 Earthquake 65 km NNW of Bukittinggi, Indonesia — May 31, 2021
2021-05-31 22:01:26 UTC (2021-05-31) · approx. 5:01 AM UTC+7 local
On May 31, 2021 at 22:01 UTC, a magnitude 4.4 shallow crustal earthquake struck 65 km NNW of Bukittinggi, Indonesia, at a depth of 31.6 km and coordinates 0.2140°, 100.0959°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
100.0959°E
Technical Information
Common Questions
How strong was the magnitude 4.4 earthquake near Bukittinggi, Indonesia?
The magnitude 4.4 earthquake that struck 65 km NNW of Bukittinggi, Indonesia on May 31, 2021 at 22:01 UTC had a depth of 31.6 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 4.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000e9h9). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, May 31, 2021). M4.4 Earthquake 65 km NNW of Bukittinggi, Indonesia — May 31, 2021. Retrieved August 7, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000e9h9/