Strange, loud noises have been scaring pets, waking up children and triggering car alarms for more than a month in Berkeley, California, but local residents and police are still at a loss when it comes to identifying what’s now called the “Berkeley Boom.”
The first “booms” were reported to authorities on February 26, according to Berkeleyside. The noises haven’t been heard every night, but streams of tweets have gradually documented their recurring nature, with people in neighboring Oakland and Emeryville also saying they’ve heard the sounds.
“I’d say it was around one in the morning, scared the hell out of me. I jumped out of bed,” local resident Rachael Marzoline said to local KPIX 5, referring to the sound she heard on the evening of March 29.