BLUFNATURAL HAZARD PICTURELIVE // USGS
Significant earthquakes,
without the noise.
BLUF starts with the authoritative event signal, then adds operational consequence only when the evidence supports it.
Earthquakes are elevated by significance and potential consequence—not simply magnitude. Location, population exposure, tsunami potential, infrastructure, transportation and subsequent official assessments determine what belongs in the wider situation picture.
LIVE DATA // U.S. GEOLOGICAL SURVEY
CONNECTING…Significant earthquakes • past 7 days
BLUF SIGNIFICANCE LOGIC
Hazard → exposure → consequence
A large remote earthquake and a smaller event beneath a major population center can have very different operational significance. BLUF's event layer is designed to make that distinction explicit rather than turn every alert into breaking news.