Taiwan's east coast was struck by a 7.2-magnitude quake on April 3, killing 17 people.
"We are seeing a more assertive and growing China."
The comments by Biden have drawn an angry response from China
"The national army will exercise right to self-defence and counter attack without exception."
It comes after US House of Representatives Speaker Nancy Pelosi's visited Taiwan in early August.
"China used the exaggerated tricks of cognitive warfare to show how close it was to Penghu - which is not true."
The drills come after US House Speaker Nancy Pelosi visited Taiwan last week.
It comes after US House Speaker Nancy Pelosi visited the self-ruled island that China regards as its territory.
