Rebecka Schumann writes "The East Coast was hit by a tsunami earlier this month, but apparently, no one was the wiser. According to the National Oceanic and Atmospheric Administration a rare six-foot wave collided with the region in early June, a phenomenon currently under review. The wave is being considered 'complex' and is believed to have been caused 'the slumping at the continental shelf east of New Jersey' or a strong storm according to the West Coast and Alaska Tsunami Warning Center. While speculation regarding the mystery tsunami is rampant, another individual is claiming the surge could possibly be a 'meteotsunami,' meaning it was not caused by seismic activity but merely a change in meteorological conditions. Paul Whitmore, an NOAA tsunami center director, said a weather system's ability to change air pressure is enough to 'generate waves that act just like tsunamis.' The alleged tsunami caused three divers to be swept off rocks, two reportedly requiring medical attention after suffering from non life-threatening injuries due the storm. The tsunami, which also caused damage to boats and docks, reportedly lasted a total of five minutes." For less obtrusive advertising, see similar stories at The Verge, and at NPR.