A military explosives team has detonated a suspected mine that a diver discovered partially buried in the sand in the ocean along the Jersey shore.
A plume of water shot about 125 feet in the air, and a boom echoed through Bay Head on Wednesday.
Naval Weapons Station Earle public affairs officer Michael Brady says the base's explosives ordnance disposal detachment will go back in the ocean to be sure they eliminated the whole device.
Brady says the device is believed to be a contact mine, but it's not known whether there were explosives inside or if it was just used for training.
Authorities evacuated about 15 homes and a quarter mile radius as a precaution.
Brady says Sandy may have exposed the device last year.