Earthquakes usually occur at plate boundaries, e.g. Pacific Ring of Fire, where the plate collide into each other and create shockwaves that rock Earth's surface.
See related question for more details.
3
Its a map to distribute things.
A regular land map will show landmarks and natural features such as mountains, plateaus, islands, etc. An earthquake map will show tectonic plate faults and earthquake danger zones.
It is called the epicenter.
seismic hazard map
Look in the related link below for a map showing you this.
you are 35007
Geological Maps.
Scientists used the hazard map to identify areas prone to earthquakes and recommend preventive measures to minimize the risk to the local population.
Found this website that summarizes earthquake activity in SC and has a map that indicates faults: http://www.dnr.sc.gov/geology/earthquake.htm. - Stacy
Juneau
the map could be incorrect
oceanic trenches