Indonesia's Mount Ibu volcano erupts, authorities prepare to evacuate thousands

Mount Ibu, a volcano in Indonesia's North Maluku province, erupted on Monday, spewing thick gray ash and dark clouds 16,400 feet into the sky for five minutes, officials said.

"The volcanic earthquakes are still intense so there is a potential for a future eruption," Hendra Gunawan, chief of the Center for Volcanology and Geological Hazard Mitigation said.

After an eruption on Friday, the center raised the alert level for the volcano from 2 to 3, the second-highest level, which widens...