M3.9 Earthquake 21 km ESE of Hualien City, Taiwan — June 7, 2026
2026-06-07 17:13:44 UTC (54 min ago) · approx. 1:13 AM UTC+8 local
On June 7, 2026 at 17:13 UTC, a magnitude 3.9 shallow crustal earthquake struck 21 km ESE of Hualien City, Taiwan, at a depth of 25.1 km and coordinates 23.8944°, 121.7903°.
Physical scale: An earthquake of magnitude 3.9 releases seismic energy equivalent to roughly 11 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 296 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
121.7903°E
Technical Information
Common Questions
How strong was the magnitude 3.9 earthquake near Hualien City, Taiwan?
The magnitude 3.9 earthquake that struck 21 km ESE of Hualien City, Taiwan on June 7, 2026 at 17:13 UTC had a depth of 25.1 km. For context, this was a minor earthquake typically detected only by instruments.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.9 earthquakes can continue for several days and gradually diminish over time.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.
Actions
Understanding This Data
Magnitude 3.9 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us7000sr9g). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, June 7, 2026). M3.9 Earthquake 21 km ESE of Hualien City, Taiwan — June 7, 2026. Retrieved June 7, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000sr9g/