Shannon County Disaster Risk
Shannon County, Missouri
FEMA Risk Rating
Relatively Low
National Percentile
58th
of 3,144 counties
State Rank
#44
of 115 (1 = highest risk)
Flood Risk
46th
percentile
Hazard Risk Breakdown
Flood
River, coastal, and surface flooding risk
Relatively Low
Higher than 46% of US counties
Wildfire
Wildland and wildland-urban interface fire risk
Relatively Low
Higher than 61% of US counties
Tornado
Tornado and severe thunderstorm risk
Relatively Low
Higher than 45% of US counties
Earthquake
Seismic activity and ground shaking risk
Relatively Low
Higher than 77% of US counties
Hurricane
Tropical cyclone and hurricane risk
Very Low
Higher than 30% of US counties
Risk Overview
About Natural Disaster Risk in Shannon County, Missouri
Shannon County faces significant seismic exposure
Shannon County's composite risk score of 57.54 exceeds the national average, driven by exceptional earthquake risk (76.62) that places it among the nation's most seismically vulnerable counties. The 'Relatively Low' rating reflects a more balanced hazard profile, but earthquake threat demands serious attention.
Above-average risk within Missouri
Shannon County's 57.54 composite score surpasses Missouri's 50.56 state average, placing it in the upper-middle tier of state disaster risk. Its earthquake exposure ranks among the highest in the state, reflecting its location in a seismically active region.
Part of active seismic corridor
Shannon County's 76.62 earthquake score sits between Reynolds County (72.55) and Ripley County (87.91) in the regional seismic hierarchy. The three counties form a notably earthquake-prone corridor within the Ozark region of southeastern Missouri.
Earthquakes dominate, wildfire secondary
Earthquakes (76.62) represent Shannon County's dominant natural hazard threat, while wildfire risk (60.81) ranks surprisingly high as a secondary concern. Tornado (44.69), flood (45.96), and hurricane (30.00) risks all rank substantially below earthquake exposure.
Earthquake insurance plus wildfire defense
Shannon County homeowners must obtain standalone earthquake insurance immediately, as standard policies exclude seismic damage entirely. Additionally, clearing dead vegetation and maintaining defensible space around structures protects against wildfire, addressing the county's second-highest natural hazard threat.
Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor
Preparedness Guide
What to Prepare for in Shannon County
Top Hazards by Exposure
Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)
Risk Advisory: Shannon County
Risk Verdict
Shannon County sits below the national average for natural disaster exposure, ranking at the 58th percentile across all U.S. counties. Understanding the specific hazards behind Shannon County's ranking helps residents prioritize where to direct emergency planning efforts.
Hazard Breakdown
Earthquake risk is Shannon County's dominant natural hazard, ranked at the 77th percentile nationally under FEMA's National Risk Index. Wildfire ranks second at the 61th percentile nationally. Additional tracked hazards include flood (46th percentile), tornado (45th percentile), hurricane (30th percentile).
Preparedness Context
At the 77th percentile nationally for earthquake risk, Shannon County is in a zone where a post-earthquake communications plan matters almost as much as pre-earthquake structural preparation — phone networks are typically congested for hours after a significant event. The county's wildfire risk at the 61th percentile nationally is a seasonal consideration alongside the year-round earthquake threat, requiring awareness of both hazard types. For Shannon County households, the three highest-impact earthquake preparedness actions are: (1) anchor heavy furniture and water heaters, (2) store three days of water at one gallon per person per day, and (3) identify a family reunification plan for the post-quake communication blackout period.
Regional Context
A composite score 7.0 points above the Missouri state average puts Shannon County in a higher-risk category than most counties in the state.
Is your household prepared for Shannon County's hazards?
Review FEMA's county-specific preparedness checklists and emergency planning guides.
Frequently Asked Questions
What is the natural disaster risk in Shannon County, MO?
What types of natural hazards affect Shannon County?
How does Shannon County risk compare to the Missouri average?
Is Shannon County at risk for earthquake?
How is natural disaster risk measured?
Why is Shannon County higher risk than average?
Data Source
Risk data sourced from the FEMA National Risk Index (NRI). Risk scores are relative rankings (0–100) across all US counties — not absolute risk measures. Higher scores indicate higher relative risk compared to other counties.
Disclaimer: This data is informational only. It is not financial, insurance, or legal advice. Always consult a qualified professional before making insurance or real estate decisions.