Taiwan's Central Weather Bureau has warned of a risk of landslides in mountainous areas.
Rescue crews have rushed to the region to evacuate people in mountainous regions vulnerable to landslides.
Interior Minister, Chiang Yoo-hoo on Sep 18, ordered authorities to remove villagers from regions prone to landslides.
Rail services were suspended throughout the island and Taiwan's China Airlines canceled international flights from Kaohsiung, the second largest city.
Fanapi would be the 11th typhoon to hit China in 2010. Seasonal flooding in China has been the worst in a decade.