Natural Disaster Risk — ZIP Code 99548

Natural Hazard Profile: ZIP 99548, Alaska

ZIP 99548 in Chignik Lake sits in Alaska, the northernmost U.S. state. Its subarctic climate produces subarctic conditions with extreme cold winters and brief summers, and notably severe winter storms. These conditions define the natural disaster environment for households across this ZIP code.

According to FEMA's National Risk Index, ZIP 99548 carries an overall risk score of 4.4/10, placing it in the moderate category. Tsunami risk is the primary coastal hazard, driven by the area's proximity to seismically active offshore zones capable of generating ocean waves that inundate low-lying coastlines. The area also faces notable exposure to volcano and avalanche.

Within Alaska, ZIP 99548's risk is, near the 4.6/10 state average. Nationally, it ranks near the U.S. national average of 4.5/10. FEMA's analysis of Alaska identifies tsunami as the foremost hazard, followed by volcano and avalanche. These rankings reflect the relative frequency and severity of each hazard type in the local environment.

With a moderate risk rating, ZIP 99548 residents are well-served by maintaining standard preparedness practices — an emergency supply kit, awareness of local hazard seasonality, and insurance that covers the top local risks. Periodic review of coverage for tsunami is recommended.