San Juan County, Washington
FEMA National Risk Index threat assessment for San Juan County.
Threat Level
Elevated
NRI Composite Score
12.2
Social Vulnerability
45.9
Community Resilience
56.7
Top Hazards
Volcanic Activity
38.5
Relatively Moderate
Coastal Flooding
25.3
Relatively Moderate
Tsunami
20.1
Relatively Low
Landslide
16.9
Relatively Moderate
Earthquake
9.7
Relatively Moderate
Ice Storm
7.5
Very Low
Avalanche
7.3
Very Low
Strong Wind
5.1
Very Low
Tornado
4.2
Very Low
Lightning
3.9
Very Low
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