Elsewhere, a powerful, 7.1 magnitude earthquake rattled Southern California on Friday night,... the second tremor to strike the region in the last two days.<br />The U.S. Geological Survey says... the quake occurred at around 8:20 p.m. local time,... some 18 kilometers away from Ridgecrest California,... which was hit the previous day by a 6.4 magnitude quake.<br />It was reportedly felt... by those living as far away as Las Vegas and Mexico.<br />The Friday night tremor is the biggest to hit Southern California in over 20 years.<br />Hundreds of aftershocks have also been recorded since Thursday,... and experts warn that the quake will likely be followed by more seismic activity in the coming days. <br />
