Chugach Census Area, AK

Population: 7,011 · FIPS code: 02063

Very Low Overall risk index: 19.6 / 100 (percentile among US counties)

Hazard breakdown

Hazard NRI rating NRI score NOAA events
(2016–2025)
Wildfire Very Low 1.3 0
Inland Flooding Very Low 0.8 0
Coastal Flooding Very Low 20.8 0
Earthquake Relatively Low 81.8
Heat Wave Insufficient Data 0
Tornado Very Low 0.1 0

NOAA event counts are recorded county-level storm events from the NOAA Storm Events Database for 2016–2025. NOAA does not track earthquakes, and some hazard reports are filed by NWS forecast zone rather than county, so these counts are a partial, not exhaustive, record of recent activity. See the methodology page for details.

Federal disaster declaration history

No federal disaster declarations on record for Chugach Census Area.

Geomagnetic latitude

Chugach Census Area sits at approximately 61.8°N geomagnetic latitude. Aurora can become visible on the horizon here during geomagnetic storms reaching roughly Kp 3 or higher. See current space weather conditions for live geomagnetic activity and aurora forecasts.

Geomagnetic latitude is an approximate dipole-model calculation based on this county's geographic centroid (US Census Bureau). See the methodology page for details and limitations.

What these ratings mean

Each score reflects how Chugach Census Area's expected losses from that hazard compare to every other county in the country, based on FEMA's National Risk Index. A "Very High" rating means this county is among the most exposed in the US for that hazard relative to other counties — it does not mean a disaster is likely this year. See the methodology page for how these scores are calculated.