Six minor earthquakes shook one New Jersey county in a single day — rattling residents as the ground beneath them wouldn’t stay still. Morris County became the epicenter of hysteria Monday as the series of quakes — ranging from a magnitude 0.

Prior to Monday’s earthquakes, New Jersey had only two small tremors reported this year, including a 2.4 magnitude quake that jolted the northern New Jersey region near New York City. That quake was centered about 1 mile east-southeast of Paramus in Bergen County.

Minor earthquakes shook Morris Plains and Randolph on Monday with one felt as far as 200 miles away due to unique geology, catching residents off guard as they started their day.