U.S. scientists will conduct their first-ever seismic search for earthquake fault lines in the mid-Atlantic states, the U.S. Geological Survey said Friday.

Scientists from the USGS will be in Wilmington, Del., Monday trying to locate active fault lines responsible for earthquakes with magnitudes of up to 3.6 on the Richter scale.More than 550 earthquakes have been documented within 150 miles of Delaware since 1677, according to the USGS. The largest known quake in the state occurred around Wilmington in 1871 and was stronger than 3.8.