M4.3 Earthquake 13 km SSE of Hualien City, Taiwan — July 14, 2021
2021-07-14 17:00:43 UTC (2021-07-14) · approx. 1:00 AM UTC+8 local
On July 14, 2021 at 17:00 UTC, a magnitude 4.3 shallow crustal earthquake struck 13 km SSE of Hualien City, Taiwan, at a depth of 5.9 km and coordinates 23.8598°, 121.6334°.
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
121.6334°E
Technical Information
Common Questions
How strong was the magnitude 4.3 earthquake near Hualien City, Taiwan?
The magnitude 4.3 earthquake that struck 13 km SSE of Hualien City, Taiwan on July 14, 2021 at 17:00 UTC had a depth of 5.9 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: us7000ely3). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, July 14, 2021). M4.3 Earthquake 13 km SSE of Hualien City, Taiwan — July 14, 2021. Retrieved September 17, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000ely3/