Taiwanese authorities say a moderate earthquake has struck the eastern part of the island, rattling buildings but causing no casualties or damage.
The Central Weather Bureau says the 5.4 magnitude quake hit 10 kilometres east of the city of Hualien at 2:55 am (local time) this morning.
Hualien is 120 kilometres southeast of the capital Taipei.
Earthquakes frequently rattle Taiwan, but most are minor and cause little or no damage.
However, a 7.6-magnitude earthquake in central Taiwan in 1999 killed more than 2,300 people, and in December 2006 a 6.7-magnitude offshore tremor south of Kaohsiung severed two undersea cables and disrupted telephone and Internet service to millions of users throughout Asia.