Talk about preparedness. The San Francisco Chronicle reported that Alphabet (Google's parent) has plans to provide aerial internet access after an earthquake in the bay area. That's a pretty strong statement about planning, preparedness, and the reality of San Francisco's earthquake vulnerability.
This wouldn't be the first time Google deployed aerial internet after a disaster. In the wake of Hurricane Maria which devastated Puerto Rico, they provided internet access to 200,000 people. Aerial internet and a cell phone charger will help you stay connected during a mass emergency incident.