M4.2 Earthquake 46 km ESE of Hualien City, Taiwan — July 23, 2024
2024-07-23 21:35:59 UTC (2024-07-23) · approx. 5:35 AM UTC+8 local
On July 23, 2024 at 21:35 UTC, a magnitude 4.2 shallow crustal earthquake struck 46 km ESE of Hualien City, Taiwan, at a depth of 41.6 km and coordinates 23.7735°, 122.0035°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
122.0035°E
Technical Information
Common Questions
How strong was the magnitude 4.2 earthquake near Hualien City, Taiwan?
The magnitude 4.2 earthquake that struck 46 km ESE of Hualien City, Taiwan on July 23, 2024 at 21:35 UTC had a depth of 41.6 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 4.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000nf0q). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, July 23, 2024). M4.2 Earthquake 46 km ESE of Hualien City, Taiwan — July 23, 2024. Retrieved October 8, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000nf0q/