M4.1 Earthquake 46 km S of Hualien City, Taiwan — July 22, 2026
2026-07-22 20:57:09 UTC (1 hour ago) · approx. 4:57 AM UTC+8 local
On July 22, 2026 at 20:57 UTC, a magnitude 4.1 shallow crustal earthquake struck 46 km S of Hualien City, Taiwan, at a depth of 24.4 km and coordinates 23.5613°, 121.5738°.
Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
121.5738°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.1 earthquake near Hualien City, Taiwan?
The magnitude 4.1 earthquake that struck 46 km S of Hualien City, Taiwan on July 22, 2026 at 20:57 UTC had a depth of 24.4 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 4.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.1 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000t2iy). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, July 22, 2026). M4.1 Earthquake 46 km S of Hualien City, Taiwan — July 22, 2026. Retrieved July 22, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000t2iy/