Natural Disaster Risk in Siasconset

Natural Hazard Profile: Siasconset, Massachusetts

Siasconset is a small unincorporated community in Nantucket County, along the northeastern Atlantic Seaboard. The area experiences cold winters with heavy snowfall and warm summers, with nor'easter storms bringing heavy snow and coastal flooding shaping the pattern of natural hazards that residents encounter. Understanding the local risk profile is essential for anyone living in, moving to, or owning property in Siasconset.

According to FEMA's National Risk Index, Siasconset carries an overall risk score of 3.3/10, placing it in the low category. Coastal flood risk defines the local natural hazard environment, with sea-level rise trends gradually increasing the frequency of tidal flooding events alongside storm surge threats. The area also faces notable exposure to hurricane and tsunami.

Siasconset's risk score, considerably below the 6.5/10 state average and below the U.S. national average of 4.5/10. Of the 18 hazard categories tracked by FEMA for Nantucket County, the highest-scoring are coastal flood, hurricane, and tsunami. These scores reflect county-level data and represent the baseline risk that all communities in the county share.

Despite its lower-than-average risk classification, Siasconset is not immune to natural hazards. Basic preparedness — an emergency kit, awareness of seasonal risks, and property insurance that covers coastal flood — remains prudent for all residents.