MENLO PARK (KRON) — The stress on Bay Area earthquake faults is increasing, and so are the chances of a major quake.

The United States Geological Survey has updated its long-range earthquake forecast. A map breaks down the chances of a big quake on each fault and lists many of the lesser-known faults from Napa to Gilroy.

The U.S.G.S. is calling attention to the update map and forecast.

It is a reminder to Bay Area residents that we live in earthquake country, and we need to be ready if and when disaster strikes, officials said.

Watch the above video to see Rob Fladeboe’s full report.