Two earthquakes measuring 5.0 and 4.8 struck off Taiwan's eastern coast during the night of October 24.
According to the Taiwan Central Weather Administration, the tremors were recorded at 4:48 a.m. and 4:58 a.m. local time (GMT+8).
The epicenter of the first earthquake was located in the sea 31 kilometers east of Hualien City, at a depth of 15.4 kilometers.
The second earthquake's epicenter was located about 30 kilometers east of Hualien, at a depth of 16.6 kilometers.
No casualties or damage have been reported.