A 4.8 magnitude earthquake occurred in Whitehouse Station, New Jersey, with some people reporting feeling the quake in nearby areas, including New York and Massachusetts. The USGS suggests this was the main earthquake of a series, with at least one aftershock reported. The earthquake's impact varied, with some people experiencing strong vibrations and others not feeling it at all. The quake's effects were felt differently depending on the location and floor level of the observer.