The Earthquake of November 30, 2017
seismicity
Delaware Earthquake Map
Earthquake data mapped below was taken from the Catalog of Delaware Earthquakes.
More details and information on earthquakes in Delaware can be found in the following:
The Geological Society of America (GSA) released a Critical Issues Paper on induced seismicity
Date
David R. Wunsch, Delaware’s State Geologist and Director of the Delaware Geological Survey, is a member of the GSA Public Policy Committee and lead author and chairman of the committee tasked with preparing the critical issues paper. A link to the paper, available on the GSA website, is: http://www.geosociety.org/criticalissues/Induced_Seismicity/index.asp
The Earthquake of August 23, 2011
Delaware and surrounding areas experienced an earthquake event on the afternoon of Tuesday, August 23, 2011. According to the US Geological Survey, a magnitude 5.8 earthquake struck at 1:51 p.m. in central Virginia, in an area referred to as “the Central Virginia Seismic Zone” because of its relatively active earthquake activity for the region. The epicenter was located five miles south-southwest of Mineral, Virginia, with the quake was focused at a depth of 6 km (3.7 miles) below the surface (http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/se082311a.html). The Virginia Geological Survey reports that this is the largest Virginia earthquake known in historic times. A few small aftershocks have occurred in the hours afterward.