California hit with biggest quake in 20-years Unlisted Video

Yesterday's magnitude 6.4 earthquake in Ridgecrest, California, was the state's biggest temblor since the 1989 Loma Prieta quake.
According to Business Insider, Thursday's quake ended a five-year earthquake drought in the state.
Scientists warn that Californians could see either another, larger quake, or severe aftershocks, in the coming days.
Indeed, a magnitude 6 aftershock struck Ridgecrest this morning.
Keeping tabs on California's three major faults is an ongoing challenge for seismologists.