Two people were killed and more than 500 injured as Typhoon Danas brought record winds of 135mph to Taiwan.
The powerful storm tore across the island after making landfall along its southwestern shores late on Sunday.
One person was killed by a falling tree while driving, said the National Fire Agency.
Another person died after their respirator malfunctioned during a power cut.
The storm reached winds of around 135mph (220kmph) as it tore through the southwestern county of Yunlin, reported the Reuters news agency.
At least 700 trees were felled across a number of cities, while road signs and concrete electric poles were snapped off their bases.
Power to nearly 700,000 homes was cut and more than 300 domestic and international flights were cancelled, according to government data.
The storm dumped more than 60cms (23.6ins) of rain in places, causing landslides and flooding.
More than 3,400 people were forced to evacuate, mostly from mountainous areas around the southern port city of Kaohsiung.
In the southern city of Tainan, the structure of a large wooden gate to a major temple collapsed and was submerged in floodwaters.
Typhoon Danas has since weakened, but is on course to hit eastern China.
Maritime officials in eastern China’s Zhejiang province raised the emergency response to the second-highest level, according to state broadcaster CCTV.
On Monday, 121 passenger vessels and 64 ferry routes had been suspended across the province, CCTV added.
Authorities in southern Guangdong province called hundreds of vessels to port to help evacuate more than 2,000 people from offshore facilities.
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Danas is expected to approach coastal areas between the cities of Taizhou and Fuzhou, according to the China Meteorological Administration.
The typhoon is forecast to make landfall in China late on Tuesday.
