California June 5, 2024 5:48 pm ‘ShakeAlert' earthquake app gets GPS upgrade The USGS rolled out a new update to the ‘MyShake’ app that allows the agency to determine the size of earthquakes quicker and send faster alerts. Alex Rozier reports for the NBC4 News on June 4, 2024. US & World Videos 2:36 Bridge Fire burns over 50,000 acres in LA and San Bernardino counties 1:14 State of emergency: SoCal dealing with three largest fires in the state 3:36 Wind shifts present major challenge for containment of Airport Fire 2:29 Families lose their homes in Mt. Baldy to destructive Bridge Fire 3:11 Norco man arrested on suspicion of starting Line Fire