Earthquake risk in Oklahoma similar to California, says USGS
Federal scientists say Oklahoma and southern Kansas face significant risk of earthquakes this year – "so high that the chance of damage ... is expected to be similar to that of earthquakes in California," said the Los Angeles Times. Since 2009, the number of earthquakes above magnitude 2.7 has soared, perhaps related to injection of wastewater deep underground, a method known as hydraulic fracturing, as part of oil and gas production.
Napa wineries jostled by California earthquake
The magnitude 6.0 earthquake in California's Napa wine country damaged buildings and wine held in storage at some wineries.