Landslides risk in Alaska

Why Alaska looks like this

You're standing in the driveway of a house in Haines, looking up at a hillside that's steeper than the photos suggested. The realtor says the slide path is "way up there." You're not so sure. That's the moment landslide risk becomes real for a lot of Alaska buyers.

Alaska gets landslides because of a few things stacked together: steep terrain, heavy rain, thawing permafrost, and earthquakes that shake loose slopes. The state is rated level 4 out of 5 for landslide risk overall. That's not a scare tactic — it's a signal that you should look at the ground, not just the house.

Where does it hit? Southeast Alaska is the obvious one. Juneau, Sitka, Ketchikan, and Haines all have neighborhoods built on or below steep slopes. The Anchorage Hillside and parts of the Matanuska-Susitna Borough have their own problems, especially where glacial deposits sit on bedrock. The Kenai Peninsula, the Aleutian Islands, and the Brooks Range have isolated but serious risk too. Even in Fairbanks, thawing permafrost can trigger slides on river bluffs. If you're looking at property in any of those places, landslide is a question you ask before you make an offer.

Insurance gaps people miss

Here's the hard part. Your standard homeowners policy almost never covers landslide. It excludes "earth movement," which is insurance-speak for earthquake, landslide, mudslide, and sinkhole. So if a hillside lets go and pushes your foundation off its footings, you're probably looking at an out-of-pocket repair.

Flood insurance is different, and this trips people up. The National Flood Insurance Program (NFIP) covers "mudflow," which FEMA defines as a river of mud. But it does not cover the landslide itself. So you might have flood coverage and still get nothing for a slope failure. Earthquake insurance won't help either — it typically excludes land movement that isn't seismic shaking.

Can you buy landslide coverage? Sometimes. A few specialty insurers sell difference-in-conditions (DIC) policies that fill the gaps left by your homeowners and flood policies. They're not cheap, and not every Alaska agent writes them. But if you own a home on a steep slope, it's worth a call. Don't assume your agent will bring it up.

A practical weekend plan

If I had one weekend and a limited budget, I'd spend $500 on a geotechnical site visit before I spent $5,000 on a cute fence. A geotech can look at the slope, the soil, and the drainage and tell you whether your house is sitting on a potential slide path.

Here's what else you can do in two days:

• Pull the USGS landslide hazard maps for your area. They're not parcel-level, but they'll tell you if you're in a high-risk zone.
• Walk the property. Look for tilted trees, new springs, cracks in the foundation, or hummocky ground that looks like it's already moving.
• Call your borough or city emergency manager. In Alaska, that's often the fastest way to learn about local slide history.
• Check your drainage. Water is the most common trigger. Make sure gutters, downspouts, and French drains move water away from the slope, not into it.
• Talk to your insurance agent about a DIC policy. Ask specifically about landslide, mudslide, and earth movement.

If you're buying, make the sale contingent on a geotechnical report. If the seller won't allow it, that's a red flag. If you already own, document everything — photos, receipts, any engineering reports. It'll help if you ever file a claim.

Questions we get

Does my Alaska homeowners policy cover landslide damage?

Almost never. Standard policies exclude earth movement, which includes landslides, mudslides, and sinkholes. You'd need a separate difference-in-conditions policy or a special rider, and even then, coverage is limited. Read your exclusions page — it's usually one paragraph that says "we don't cover this."

Can I buy landslide insurance in Alaska?

Yes, but it's not easy. A handful of surplus lines carriers offer landslide coverage, often bundled with earthquake or flood. Expect high premiums and a high deductible. Start with an independent agent who works in Alaska, not a call center. If they say "no one writes that," call another one.

What should I do if a landslide is moving toward my house in Alaska?

Leave. Don't wait to see if it stops. Call 911 or your local emergency manager. Once you're safe, document the damage with photos and video, and contact your insurance agent. The Alaska Division of Homeland Security & Emergency Management has resources at ready.alaska.gov for after the event.

Official maps and agencies

Don't rely on a blog post. Use these official sources:

• Alaska Division of Homeland Security & Emergency Management
• USGS Landslide Hazards Program
• Ready.gov – Landslides and Debris Flow

Landslide risk in Alaska is real, but it's not random. Slopes fail where water, gravity, and weak geology meet. If you know where you are on that map, you can make better decisions about what to buy, how to build, and what to insure.