David Cosgrave is the CalFire Division Chief for San Mateo County; he is a lead instructor for Coastside CERT with 1,800 members serving 32 county neighborhoods. Cosgrave trains how to effectively “drop, cover and hold on” to reduce risks regardless of where we find ourselves or any mobility issues one may have. Cosgrave also covers how to prepare for an earthquake and what to expect after a big one hits. (2021)