March 20, 2013 4:40 pm What's Shaking in South Jersey? Surveillance video captured vibrating windows and shocked storekeepers after the ground in South Jersey rumbled just after 3 p.m. on Tuesday afternoon. NBC10’s Ted Greenberg investigates the cause of the shake. US & World Videos 21:51 NBC10 @Issue: Reclassifying marijuana 0:35 Fans of ‘The Office' got to see some of the stars at Fan Expo Philadelphia on Saturday 2:32 Rainy, chilly weather didn't stop many from enjoying festivals throughout Philadelphia 0:29 Driver found safe after carjacking in Delaware 2:23 Teen killed in quadruple shooting in North Philadelphia on Saturday evening