“I don’t know how many explosions truly occurred,” said Jeff Lopez, a Huntington Beach Fire Department battalion chief outside the Village plaza on Sunday. More blasts followed, shaking nearby buildings and sending hundreds of people fleeing. Authorities were investigating Sunday after five people were injured, one badly, when a series of electrical vault explosions struck in the midst of the Oktoberfest celebration at Old World Village in Huntington Beach the night before.Īt least one created a giant fireball and blew a 50-pound latched door to the transformer vault into the air, according to the Huntington Beach Fire Department and videos posted to social media.