M4.3 Earthquake 94 km E of Hengchun, Taiwan — April 14, 2021
2021-04-14 16:36:48 UTC (2021-04-14) · approx. 12:36 AM UTC+8 local
On April 14, 2021 at 16:36 UTC, a magnitude 4.3 shallow crustal earthquake struck 94 km E of Hengchun, Taiwan, at a depth of 11.9 km and coordinates 21.8934°, 121.6547°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
121.6547°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Hengchun, Taiwan?
The magnitude 4.3 earthquake that struck 94 km E of Hengchun, Taiwan on April 14, 2021 at 16:36 UTC had a depth of 11.9 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 4.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000e3a1). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, April 14, 2021). M4.3 Earthquake 94 km E of Hengchun, Taiwan — April 14, 2021. Retrieved June 19, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000e3a1/