6.4 earthquake hits southern California, biggest in decades, State of Emergency declared in town near quake epicenter; U.S. Geological Survey: Expect aftershocks for the next couple of weeks; At least 85 aftershocks following 6.4 quake in California; President Trump briefed on major California earthquake; Presidential speech and flyover delayed due to weather; Fires, gas leaks, damage reported in town near the epicenter of 6.4 earthquake in Southern California; 159 aftershocks after 6.4 quake in southern California; Trump still expected to speak despite weather delay; Source: "Concern Ran Deep" about size of crowd for Trump speech via Knit