Earthquake in the Napa Valley, new technologies have expected with 10 seconds of advance Technology Update NEWS Earthquake in the Napa Valley, new technologies have expected with 10 seconds of advance Kei Taylor 2014-08-30 In California is being experienced early warning system for earthquakes. The recent earthquake in the Napa Valley... Read More Read more about Earthquake in the Napa Valley, new technologies have expected with 10 seconds of advance