Climate Risk Summary

Somerton, AZ Risk Profile

The primary drivers of climate-related financial risk in Somerton, AZ are Earthquake, Inland Flooding, and Heat Wave.

City-Wide Aggregation

These scores represent the population-weighted average across all residential blocks in Somerton.

Primary Risks

Earthquake

$2,914,387

Expected Annual Loss for Somerton

88.4Score

Relatively High compared to US average

Somerton
Minimal Estimated LossMax Estimated Loss

Inland Flooding

$1,001,990

Expected Annual Loss for Somerton

17.3Score

Relatively Low compared to US average

Somerton
Minimal Estimated LossMax Estimated Loss

Heat Wave

$439,145

Expected Annual Loss for Somerton

82.9Score

Relatively High compared to US average

Somerton
Minimal Estimated LossMax Estimated Loss

City Boundary

Legend
Very Low
Low
Moderate
High
Very High
Extreme

Financial Risk Inventory

MAJOR DRIVER
Earthquake
$2,914,387
Score: 88.4
MAJOR DRIVER
Inland Flooding
$1,001,990
Score: 17.3
MAJOR DRIVER
Heat Wave
$439,145
Score: 82.9
Strong Wind
$35,479
Score: 36.1
Drought
$21,501
Score: 79.7
Lightning
$7,401
Score: 13.4
Wildfire
$5,478
Score: 59.9
Tornado
$4,780
Score: 3.6
Hail
$1,963
Score: 14.5
Hurricane
$200
Score: 15.4
Volcanic Activity
$2
Score: 46.0
Landslide
$0
Score: 8.5

Recommended investments to protect your property value and reduce insurance liability based on your local risk profile.

🏠Low Investment

Earthquake Mitigation

General property maintenance and insurance review recommended.

Risk Score: 88.4
☀️Low Investment

Heat Wave Mitigation

Ensure attic insulation is R-49+ and consider a dual-fuel backup generator for AC.

Risk Score: 82.9
🏠Low Investment

Drought Mitigation

General property maintenance and insurance review recommended.

Risk Score: 79.7
🔥Low Investment

Wildfire Mitigation

Create a 5ft 'non-combustible' zone around your home using gravel or pavers instead of mulch.

Risk Score: 59.9

Sources and Methodology

Spatial Aggregation

Our "Atlas" risk scores are derived using a population-weighted spatial join. Because US Zip Codes and Census Tracts do not share perfectly aligned boundaries, a simple geographic average would be misleading. We utilize US Census Block Group population statistics to identify where residents actually live within a Zip Code. We then intersect these points with FEMA National Risk Index (NRI) hazard data to calculate a weighted exposure score.

Financial Projections (EAL)

Expected Annual Loss (EAL) estimates the average economic impact of natural hazards in dollars per year. This calculation incorporates three components: Exposure (the value of structures and agriculture), Annualized Frequency (historical probability), and Historic Loss Ratio (vulnerability of the area).

Primary Data Sources

  • FEMA National Risk IndexHazard frequency and loss data (v1.20.0)
  • U.S. Census BureauTIGER/Line 2025 Shapefiles & Decennial Population

Nearby Cities

Avenue B and CFortuna FoothillsSan LuisWelltonYuma

Zip Codes in Somerton

8535085365