Natural Disaster Risk in Hagatna

Natural Hazard Profile: Hagatna, GU

Hagatna, in Guam County, is a small unincorporated community situated near the Atlantic Coast of the southeastern United States. Its temperate continental climate brings a temperate continental climate with four seasons, and in particular seasonal severe weather. These conditions collectively define the natural hazard environment that Hagatna residents and property owners must navigate.

According to FEMA's National Risk Index, Hagatna carries an overall risk score of 2.2/10, placing it in the low 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 coastal flood.

Within GU, Hagatna's risk is. Nationally, it ranks well below the U.S. national average of 4.5/10. FEMA's analysis of Guam County identifies tsunami as the foremost hazard, followed by volcano and coastal flood. These rankings reflect the relative frequency and severity of each hazard type in the local environment.

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