Earthquakes’ sudden, rapid shaking can cause fires, tsunamis, landslides or avalanches. They can happen anywhere, but they’re most common in Alaska, California, Hawaii, Oregon, Puerto Rico and Washington, according to the Department of Homeland Security.

Forecasters said excessive rainfall could lead to flash flooding and debris flows in recent burn scars, including the Eaton and Palisades fires.

The upcoming storm is likely to pose a higher risk for mudslides, debris flows and flooding than the rainfall this past week.

For the first time, a fire detection system invented by a Newport Beach teenager will be tested in a real-world situation. Seventeen-year-old Ryan Honary’s system, which he has been developing for five years,