riskbycounty
FEMA NRI 1.19.0Updated Nov 2023 · Coverage 2014–2023Methodology

Ripley County Disaster Risk

Ripley County, Missouri

FEMA Risk Rating

Relatively Low

National Percentile

57th

of 3,144 counties

State Rank

#47

of 115 (1 = highest risk)

Flood Risk

59th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 59% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 45% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 58% of US counties

Earthquake

Seismic activity and ground shaking risk

Moderate

Higher than 88% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 40% of US counties

Risk Overview

About Natural Disaster Risk in Ripley County, Missouri

Ripley County faces exceptional earthquake hazards

Ripley County's composite risk score of 57.00 is amplified by one of the nation's highest earthquake risk scores (87.91), ranking it far above typical U.S. counties. Though rated 'Relatively Low' overall, this seismic exposure demands serious attention from property owners and emergency planners.

Above-average risk in Missouri context

Ripley County's 57.00 composite score exceeds Missouri's 50.56 state average, placing it solidly in the upper-risk category statewide. Its earthquake exposure is among the highest in the entire state, reflecting its position near major fault lines.

Seismic corridor runs through region

Ripley County's 87.91 earthquake score ranks highest among its neighboring counties, including Reynolds (72.55) and Shannon (76.62). The trio sits within a seismically active zone, though Ripley bears the greatest concentrated earthquake risk in the immediate area.

Earthquakes dwarf other hazards here

Earthquakes (87.91) dominate Ripley County's risk profile—a threat level approaching that of California in many locales. Flood risk (59.41), tornado risk (57.82), and even hurricane exposure (40.22) rank well below the seismic hazard in terms of overall concern.

Earthquake insurance is non-negotiable

Ripley County residents must obtain standalone earthquake insurance, as it is not covered by standard homeowner policies and damage from seismic events can be catastrophic. Retrofitting property foundations and securing heavy furniture are equally critical steps to reduce injuries and structural damage during an earthquake event.

Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor

Preparedness Guide

What to Prepare for in Ripley County

Top Hazards by Exposure

  1. #1
    EarthquakePrepare
    88th percentile
  2. #2
    FloodPrepare
    59th percentile
  3. #3
    TornadoPrepare
    58th percentile

Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)

Risk Advisory: Ripley County

Risk Verdict

At the 57th percentile nationally, Ripley County experiences a manageable level of natural hazard risk that falls below the U.S. median. Ripley County's risk profile calls for targeted preparedness, focusing on the hazard categories that dominate the county's score.

Hazard Breakdown

Earthquake risk is Ripley County's dominant natural hazard, ranked at the 88th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 59th percentile nationally. Additional tracked hazards include tornado (58th percentile), wildfire (45th percentile), hurricane (40th percentile).

Preparedness Context

Ripley County's primary hazard, earthquake, ranks at the 88th percentile nationally. Unreinforced masonry structures carry the highest injury risk during seismic events; residents in older buildings should check with their municipality about available seismic retrofit programs. Alongside earthquake exposure, Ripley County's flood risk at the 59th percentile nationally reinforces the value of maintaining a household emergency supply cache usable for multiple hazard scenarios. After a major earthquake, Ripley County residents should expect water service disruption for 24 to 72 or more hours. Storing a minimum of one gallon per person per day for three days — before any event — is the most direct preparedness action households can take.

Regional Context

Ripley County falls 6.4 points above Missouri's typical county risk level, which means the hazard environment here is notably more demanding than the state baseline.

Is your household prepared for Ripley County's hazards?

Review FEMA's county-specific preparedness checklists and emergency planning guides.

FEMA Ready Guide →

Frequently Asked Questions

What is the natural disaster risk in Ripley County, MO?
Ripley County has a FEMA National Risk Index rating of Relatively Low, placing it in the 57th percentile nationally out of 3,144 counties. This composite score reflects the county's overall exposure to natural hazards including floods, wildfires, tornadoes, earthquakes, and hurricanes, weighted by expected annual loss and social vulnerability.
What types of natural hazards affect Ripley County?
Ripley County is evaluated for five major natural hazard types: earthquake (88th percentile), flooding (59th percentile), tornado (58th percentile), wildfire (45th percentile), hurricane (40th percentile). The highest-risk hazard is earthquake at the 88th percentile nationally. These scores are derived from FEMA's National Risk Index, which analyzes expected annual loss, social vulnerability, and community resilience for each hazard type.
How does Ripley County risk compare to the Missouri average?
Ripley County's composite risk percentile is 57th, compared to the Missouri state average of 51th percentile. The state's overall risk rating is Relatively Low. This means Ripley County faces higher natural disaster risk than the typical county in Missouri.
Is Ripley County at risk for earthquake?
Yes, Ripley County's earthquake risk is at the 88th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Ripley County is at the 59th percentile.
How is natural disaster risk measured?
FEMA's National Risk Index (NRI) calculates risk scores for 18 natural hazard types across all U.S. counties and census tracts. The composite score combines Expected Annual Loss (estimated dollar losses from each hazard), Social Vulnerability (demographic factors affecting disaster impact), and Community Resilience (ability to recover). Percentile scores rank each county against all 3,144 U.S. counties, and risk ratings range from Very Low to Very High.
Why is Ripley County higher risk than average?
Ripley County's composite risk score of 57th percentile is above the Missouri state average of 51th percentile. This elevated risk is driven by earthquake exposure (88th percentile), along with flooding and tornado risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.
By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor

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.