M4.5 Earthquake 55 km SE of Yujing, Taiwan — May 7, 2021
2021-05-07 21:24:18 UTC (2021-05-07) · approx. 5:24 AM UTC+8 local
Felt by 1 person across nearby locations.
On May 7, 2021 at 21:24 UTC, a magnitude 4.5 shallow crustal earthquake struck 55 km SE of Yujing, Taiwan, at a depth of 10.0 km and coordinates 22.8178°, 120.8944°.
Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.
The epicenter is located in Taiwan, a region characterized by the collision of the Luzon volcanic arc with the Eurasian continental margin, where the Philippine Sea Plate converges at 80 mm per year. View all earthquakes in Taiwan.
Learn more: Magnitude scale · Aftershock sequences
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
120.8944°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.5 earthquake near Yujing, Taiwan?
The magnitude 4.5 earthquake that struck 55 km SE of Yujing, Taiwan on May 7, 2021 at 21:24 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 22.8178°, 120.8944°, which is 55 km SE of Yujing, Taiwan. View all earthquakes in Taiwan.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.
Has Taiwan had earthquakes this big before?
The largest recorded earthquake in Taiwan was the M7.6 Chi-Chi earthquake of September 21, 1999. Today's magnitude 4.5 event is significantly smaller than that historical record.
Authoritative source: USGS event page (event ID: us7000e16a). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, May 7, 2021). M4.5 Earthquake 55 km SE of Yujing, Taiwan — May 7, 2021. Retrieved July 23, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000e16a/