M4.2 Earthquake 66 km ESE of Lugu, Taiwan — December 14, 2022
2022-12-14 22:54:11 UTC (2022-12-14) · approx. 6:54 AM UTC+8 local
On December 14, 2022 at 22:54 UTC, a magnitude 4.2 shallow crustal earthquake struck 66 km ESE of Lugu, Taiwan, at a depth of 21.9 km and coordinates 23.4228°, 121.3040°.
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
121.3040°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.2 earthquake near Lugu, Taiwan?
The magnitude 4.2 earthquake that struck 66 km ESE of Lugu, Taiwan on December 14, 2022 at 22:54 UTC had a depth of 21.9 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 4.2 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: us6000jacn). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, December 14, 2022). M4.2 Earthquake 66 km ESE of Lugu, Taiwan — December 14, 2022. Retrieved February 18, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000jacn/