"The earthquake belt in eastern Taiwan has not had any activity for some time," Chien said.
Nevertheless, Joan was a powerful typhoon, and struck eastern Taiwan with estimated winds of on the 29th.
A deluge fell across eastern Taiwan, where flood-related damage was concentrated.
People in eastern Taiwan boarded up their windows to try to minimize structural damage.
The storm, designated Ofelia, was the worst to hit eastern Taiwan in 30 years.
It has recently become important to commercial fisheries operating off eastern Taiwan.
It turned to the west, and hit eastern Taiwan on September 4 as a 50 mph tropical storm.
It is the largest river in eastern Taiwan.
She was born in the rugged mountains of eastern Taiwan and is the third youngest of nine siblings.
All were accepted except a young female devotee from Hualien, a county in eastern Taiwan.