M4.9 Earthquake 63 km ESE of Yilan, Taiwan — August 15, 2026
2026-08-15 11:30:15 UTC (1 hour ago) · approx. 7:30 PM UTC+8 local
Felt by 1 person across nearby locations.
On August 15, 2026 at 11:30 UTC, a magnitude 4.9 shallow crustal earthquake struck 63 km ESE of Yilan, Taiwan, at a depth of 66.4 km and coordinates 24.4732°, 122.2931°. This earthquake was detected by 47 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 370, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — 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
122.2931°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.9 earthquake near Yilan, Taiwan?
The magnitude 4.9 earthquake that struck 63 km ESE of Yilan, Taiwan on August 15, 2026 at 11:30 UTC had a depth of 66.4 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 24.4732°, 122.2931°, which is 63 km ESE of Yilan, Taiwan. View all earthquakes in Taiwan.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 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 4.9 event is significantly smaller than that historical record.
Authoritative source: USGS event page (event ID: us6000tl0a). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 15, 2026). M4.9 Earthquake 63 km ESE of Yilan, Taiwan — August 15, 2026. Retrieved August 15, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tl0a/