Mauna Loa: world’s largest active volcano erupts for first time in 38 years – video

The world's largest active volcano has erupted for the first time in 38 years. While the eruption of Mauna Loa wasn't immediately endangering towns, officials have told about 200,000 people living on Hawaii's Big Island to prepare to evacuate in the event lava flows started heading towards populated areas.

The US Geological Survey warned an eruption 'can be very dynamic, and the location and advance of lava flows can change rapidly'

• Hawaii's Mauna Loa volcano erupts as officials warn people to prepare to evacuate