Natural Disaster Risk in Arock

Natural Hazard Profile: Arock, Oregon

Arock is a small unincorporated community in Malheur County, in the western mountain region near the Pacific Coast. The area experiences mild, wet winters on the coast and semi-arid conditions inland, with a high wildfire risk period in the dry summer months 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 Arock.

According to FEMA's National Risk Index, Arock carries an overall risk score of 5.6/10, placing it in the moderate category. Volcanic hazard exposure defines the local risk environment, driven by proximity to one of the most active volcanic systems in the United States. The area also faces notable exposure to avalanche and wildfire.

Arock's risk score, near the 5.7/10 state average and above the U.S. national average of 4.5/10. Of the 18 hazard categories tracked by FEMA for Malheur County, the highest-scoring are volcano, avalanche, and wildfire. These scores reflect county-level data and represent the baseline risk that all communities in the county share.

With a moderate risk rating, Arock 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 volcano is recommended.