M4.3 Earthquake 75 km S of Hualien City, Taiwan — December 1, 2023
2023-12-01 22:27:29 UTC (2023-12-01) · approx. 6:27 AM UTC+8 local
On December 1, 2023 at 22:27 UTC, a magnitude 4.3 shallow crustal earthquake struck 75 km S of Hualien City, Taiwan, at a depth of 27.9 km and coordinates 23.3061°, 121.4821°.
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
121.4821°E
Technical Information
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Common Questions
How strong was the magnitude 4.3 earthquake near Hualien City, Taiwan?
The magnitude 4.3 earthquake that struck 75 km S of Hualien City, Taiwan on December 1, 2023 at 22:27 UTC had a depth of 27.9 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: us7000lf8y). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, December 1, 2023). M4.3 Earthquake 75 km S of Hualien City, Taiwan — December 1, 2023. Retrieved February 6, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000lf8y/