Matthew Fergusson, from Wickford, described a “massive explosion” that sent a “mushroom cloud” towering into the sky.
“I thought someone had dropped something heavy upstairs, but when I went outside the whole street was out,” he added.
Steven Whan, 58, from Bicknacre, near Danbury, thought he had heard a jet’s sonic boom when the explosion occurred.
“Our house shook, the doorbell went off. I thought it was a sonic boom because we’ve experienced that before,” he said.