M4.3 Earthquake 30 km S of Yilan, Taiwan — October 17, 2026
2026-10-17 03:13:18 UTC (23 hours ago) · approx. 11:13 AM UTC+8 local
On October 17, 2026 at 03:13 UTC, a magnitude 4.3 intermediate depth earthquake struck 30 km S of Yilan, Taiwan, at a depth of 70.0 km and coordinates 24.4834°, 121.8058°.
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
121.8058°E
Technical Information
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Common Questions
How strong was the magnitude 4.3 earthquake near Yilan, Taiwan?
The magnitude 4.3 earthquake that struck 30 km S of Yilan, Taiwan on October 17, 2026 at 03:13 UTC had a depth of 70.0 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: us6000u2xx). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, October 17, 2026). M4.3 Earthquake 30 km S of Yilan, Taiwan — October 17, 2026. Retrieved October 18, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000u2xx/