Four earthquakes shook the Carson City region Wednesday morning, the largest quake with a magnitude 3.0, at 7:22 a.m. according to the Nevada Seismological Lab. A 2.4 magnitude earthquake was registered at 7:23 a.m. followed by a 2.0, also at 7:23 a.m. and a 1.2 at 7:44 a.m. The earthquakes were centered around 9 miles southeast of Carson City.