Washington home risk profile

You're landing at Sea-Tac on Friday for a weekend of house hunting. Before you fall for the Craftsman with the water view, know what you're buying into. Washington's earthquake risk is 5/5—the Cascadia subduction zone and shallow faults like the Seattle fault can shake the whole region. Flooding, landslides, and wildfires all rate 4/5. That's a lot of risk to sort out in two days, but it's doable if you know where to look.

Flooding here isn't just coastal. Rivers coming out of the Cascades swell with winter rain and spring melt. FEMA flood maps help, but they don't catch every drainage ditch or burn scar. Landslides often follow heavy rain on steep slopes, especially where hillsides have been cut for development. Wildfire risk has grown east of the mountains, in places like Spokane and the Okanogan, and in pockets west of the crest. Ask about all three. You can't rely on a single source for any of this.

Winter storms rate a 3/5—they'll knock out power and close passes, but they're not the deal-breaker. The hazards that worry me most are the ones you can't see: the fault line, the floodplain, the slide zone. If you've got one weekend, I'd spend it checking the slope behind the house and asking the seller for flood insurance claims history. That's more useful than a fresh coat of paint. The rest of the hazards on our list are lower, but they're not zero.

Start with the Washington Emergency Management Division for county hazard maps and preparedness guides. Then call the local planning department and ask what happened in the last big storm. No house is risk-free, but you can go in with your eyes open. That's the kind of due diligence that pays off.