Asia

Volcano in southern Japan erupts; no injuries

  • This aerial photo shows cars totally covered by gray ash parked on the compound of a driving school in Aso, Kumamoto Prefecture, southern Japan, Saturday morning, Oct. 8, 2016, following Mount Aso erupted earlier in the day. Mount Aso has sent huge plumes of gray smoke as high as 11 kilometers (6.8 miles) into the air in one of the volcano's biggest explosions in years. (Hiroko Harima/Kyodo News via AP)

    This aerial photo shows cars totally covered by gray ash parked on the compound of a driving school in Aso, Kumamoto Prefecture, southern Japan, Saturday morning, Oct. 8, 2016, following Mount Aso erupted earlier in the day. Mount Aso has sent huge plumes of gray smoke as high as 11 kilometers (6.8 miles) into the air in one of the volcano's biggest explosions in years. (Hiroko Harima/Kyodo News via AP)  (The Associated Press)

  • In this aerial view, plumes of white smoke rise from Mount Aso Nakadake Crater in Kumamoto Prefecture, southern Japan, Saturday morning, Oct. 8, 2016 following eruptions earlier in the day. Mount Aso has sent huge plumes of gray smoke as high as 11 kilometers (6.8 miles) into the air in one of the volcano's biggest explosions in years. (Hiroko Harima/Kyodo News via AP)

    In this aerial view, plumes of white smoke rise from Mount Aso Nakadake Crater in Kumamoto Prefecture, southern Japan, Saturday morning, Oct. 8, 2016 following eruptions earlier in the day. Mount Aso has sent huge plumes of gray smoke as high as 11 kilometers (6.8 miles) into the air in one of the volcano's biggest explosions in years. (Hiroko Harima/Kyodo News via AP)  (The Associated Press)

  • This aerial photo shows buildings of Aso Shrine, some flattened and damaged by April's earthquakes, totally covered by gray ash in Aso, Kumamoto Prefecture, southern Japan, Saturday morning, Oct. 8, 2016, following Mount Aso erupted earlier in the day. Mount Aso has sent huge plumes of gray smoke as high as 11 kilometers (6.8 miles) into the air in one of the volcano's biggest explosions in years. (Hiroko Harima/Kyodo News via AP)

    This aerial photo shows buildings of Aso Shrine, some flattened and damaged by April's earthquakes, totally covered by gray ash in Aso, Kumamoto Prefecture, southern Japan, Saturday morning, Oct. 8, 2016, following Mount Aso erupted earlier in the day. Mount Aso has sent huge plumes of gray smoke as high as 11 kilometers (6.8 miles) into the air in one of the volcano's biggest explosions in years. (Hiroko Harima/Kyodo News via AP)  (The Associated Press)

Mount Aso in southern Japan has sent huge plumes of gray smoke as high as 11 kilometers (6.8 miles) into the air in one of the volcano's biggest explosions in years.

The Japan Meteorological Agency says early Saturday's explosion also blew off bits of volcanic rock and ash, and raised the alert level for the area, extending the entry ban from just around the volcanic mouth to the mountain itself.

Nobody lives within the area and there were no reports of injuries or damage in the area still recovering from deadly earthquakes earlier this year.

Mount Aso has repeated smaller eruptions in recent years. The agency said the volcano could erupt again.

Japan sits atop the Pacific "ring of fire" and has more than 100 volcanoes.