SACRAMENTO – California’s first-in-the-nation Earthquake Early Warning System provided more than a million Californians advance notice before a 5.6-magnitude earthquake struck near Willits in Northern California in the morning on Jun 24, giving residents critical seconds to take life-saving action. The Governor’s Office of Emergency Services (Cal OES) estimates that hundreds of thousands more received wireless emergency alerts on devices that have integrated earthquake early warning alert software built into their operating systems.

The earthquake, centered 7.5 miles east of Willits in the Mendocino Range, was felt across wide areas of Northern California just after 8 a.m., including the greater San Francisco Bay Area and Sacramento region. Early alerts can provide people with critical seconds to take proactive action to protect themselves, such as dropping, covering, and holding on before shaking begins.

Cal OES continues to coordinate with local officials to assess impacts and support communities in affected areas.

MyShake’s growing reach: 4.5 million downloads and counting

California reached a major milestone as the MyShake App surpassed 4.5 million downloads. This achievement is another significant step in expanding access to California’s life-saving earthquake technology and building resilience across the state.

Since its inception, the app has delivered more than 6.8 ?million alerts for 194 earthquakes. More than 60% of the system’s 1,064 sensors have been installed since the program launched, making the system more accurate and faster at delivering alerts.