M4.3 Earthquake 53 km SSE of Hengchun, Taiwan — December 25, 2020
2020-12-25 20:45:50 UTC (2020-12-25) · approx. 4:45 AM UTC+8 local
On December 25, 2020 at 20:45 UTC, a magnitude 4.3 shallow crustal earthquake struck 53 km SSE of Hengchun, Taiwan, at a depth of 10.0 km and coordinates 21.5907°, 121.0060°.
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
121.0060°E
Technical Information
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Common Questions
How strong was the magnitude 4.3 earthquake near Hengchun, Taiwan?
The magnitude 4.3 earthquake that struck 53 km SSE of Hengchun, Taiwan on December 25, 2020 at 20:45 UTC had a depth of 10.0 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 4.3 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: us6000d63d). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, December 25, 2020). M4.3 Earthquake 53 km SSE of Hengchun, Taiwan — December 25, 2020. Retrieved March 6, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000d63d/