A 5.9-magnitude earthquake jolted Taiwan Wednesday and shook buildings in the capital, the Seismology Centre said, but there were no immediate reports of casualties or damage.
A strong 6.6-magnitude earthquake struck off Papua New Guinea's Bougainville Island Saturday but there was no risk of a widespread tsunami, seismologists said.
North Korea staged an apparent nuclear test Tuesday in a striking act of defiance that, if confirmed, is sure to trigger global condemnation from enemies and allies alike.
US scientists on Tuesday joined global colleagues in expressing outrage at an Italian court's sentencing of six seismologists to jail for underestimating the risks of a 2009 earthquake.