Not really, but the largest Great Nevada Shakeout in its three-year history, and part of the world's largest public earthquake drill with 18 million participants globally, is 10:18 a.m. today.More than a half a million Nevadans are registered to participate in the annual statewide public earthquake drill, and with just a few days to go the Nevada Seismological Laboratory would like 100,000 more people registered.A series of 115 earthquakes in the past week under Spanish Springs is a good reminder that Nevada is a seismically active state and residents should be prepared and practice earthquake readiness - and be ready …