CHELSEA JENSEN/WEST HAWAII TODAY VIA AP
Lava pours out of the summit crater of Mauna Loa about 6:35 a.m. Monday, Nov. 28, as seen from Gilbert Kahele Recreation Area on Maunakea, Hawaii. Mauna Loa, the world’s largest active volcano, began spewing ash and debris from its summit, prompting civil defense officials to warn residents on Monday to prepare in case the eruption causes lava to flow toward communities.