The ShakeAlert system is substantially built in California and overall is about 55 percent complete, with much of the remaining installation of seismic sensor stations to be done in the Pacific Northwest, said Robert de Groot of the U.S. Geological Survey.
A magnitude 4.9-magnitude aftershock to last Friday’s 7.1 earthquake hit the Ridgecrest area of Kern County today, the U.S. Geological survey reported.
The South Coast Air Quality Management District’s Refinery Committee today directed agency staff to develop a regulation by May 2019 to better mitigate the risk from – or possibly phase out — the use of a highly toxic chemical used at two Southland refineries.
An early earthquake warning system for the West Coast will come to fruition, despite President Donald Trump’s proposal to cut federal funding for the project.