And,

The Central Weather Administration's Seismological Center is warning that
aftershocks of between magnitudes 4 and 4.5 could be felt over the coming
week, after yesterday's magnitude 5.1 earthquake in Nantou County.

The quake struck at 8:46AM and was centered some 33-kilometers east-northeast
of Nantou County Hall at a depth of 15-kilometers.

It was felt strongest in Nantou's Puli Township, where it measured a 4 on the
weather administration's intensity scale.

The earthquake was caused by the northwestward collision of the Philippine
Sea Plate with the Eurasian Plate ..

Its epicenter was located in an area with relatively active seismic activity,
where long-term stress accumulation and fracturing in geological formations
triggered the quake.

The center says the quake has been regarded as a single, isolated seismic
event, but that aftershocks could still occur.

Data shows there have been 15 earthquakes of magnitude 5 or above within a
30-kilometer radius of Sunday's epicenter since 2000, with the most recent
one occurring in 2021.