EventSeverity
Import from: @xbbg/xnews, @xbbg/xnews/catalog
EventSeverity =
"extreme"|"severe"|"moderate"|"minor"|"unknown"
Defined in: src/types.ts (declaration: types.d.ts:333)
Normalized urgency, mapped from each publisher's native scale (NWS severity, GDACS alert colour, USGS volcano alert level). unknown means the publisher stated nothing recognized — never a silent downgrade to minor, because an unranked alert is not a mild one.
