6.4-magnitude quake hits southern Taiwan

epicenter
definition: the part of earth surface directly above the origin of earthquke
The 921 epicenter was happened at  Nantou.

rumble
definition: a rumbling sound
A rumble of thunder.

juncture
definition: a state of affairs or point in time
At this juncture in our nation's  affairs ,  we need find leadship.

alter
definition: change : make different
He has altered since his illness. 

announce
definition: make known publicly
He announces the six o'clock news.