A volcano near Tokyo has erupted for the first time in four years, throwing ash and smoke nearly two kilometres into the sky and sparking warnings not to approach the mountain.

Papua New Guinea's volatile Ulawun volcano -- designated one of the world's most hazardous -- erupted Wednesday, spewing lava high in the air and sending residents fleeing.

A volcano on the Indonesian island of Bali erupted Friday, spewing a plume of ash and smoke more than 2,000 metres (6,500 feet) into the sky.

Guatemalan authorities on Monday declared a red alert after the Fuego volcano erupted again, forcing about 200 residents to flee.

A magnitude 6.9 earthquake shook Hawaii's Big Island on Friday, prompting fresh eruptions of a volcano that has been spewing lava near residential areas, forcing hundreds of people to flee. The US Geological Survey said the quake struck at 12:32 pm (2232 GMT) and was centered on the south flank of the Kilauea volcano, which…

Vanuatu has declared a state of emergency and evacuated thousands of residents from an island in the Pacific archipelago after a volcanic eruption rained rocks and ash on nearby homes, reports and officials said Tuesday.