Rating
Seychelles risk rating
Not currently assessed · Model legacy
Computed: 2026-08-25 08:06:00 UTC · Valid until: Not recorded
Coverage is selective. Missing or expired assessments do not mean zero hazard. Scores are heuristic indices, not calibrated probabilities. Model cards and limits
This is a last assessment, not a current rating. Its validity has expired or was not recorded. That does not establish that no events or hazards are present.
The rating is a composite index of reported activity; it does not measure structural vulnerability or coping capacity. It shares inputs with the Calamity Forecast Index. Neither index is a calibrated event probability. Model cards and formulas.
Recorded hazard contributions
Mean event index: 22/100 · Eligible records: 1
The four aggregate contributions were not stored for this assessment. Hazard averages are separate recorded values, not reconstructed aggregate terms.
Rating history
- AtoAindex 8 → 8Orange → Green51d agoOperational status changed from orange to greenUnhealthy Air Quality (AQI 167) (CalamityScore 22)
EVENT: Unhealthy Air Quality (AQI 167) — SC Detected: 2026-08-22T06:51:04.000Z CalamityScore: 22/100 Severity: medium POPULATION AT RISK: Estimated 2,233 people within impact zone HISTORICAL CONTEXT: Location: SC region. RECOMMENDED ACTIONS: Conduct structural assessments of vulnerable buildings. Issue public advisories. Monitor seismic activity. No cascade risks detected for this event.
- AtoAindex 9 → 9Green → Yellow69d agoOperational status changed from green to yellowVery Unhealthy Air Quality (AQI 209) (CalamityScore 26)
- AtoAindex 9 → 9Green → Yellow70d agoOperational status changed from green to yellowVery Unhealthy Air Quality (AQI 200) (CalamityScore 26)
- AtoAindex 9 → 9Yellow → Green73d agoOperational status changed from yellow to greenUnhealthy Air Quality (AQI 191) (CalamityScore 26)
- AtoAindex 9 → 9Yellow → Green73d agoOperational status changed from yellow to greenUnhealthy Air Quality (AQI 199) (CalamityScore 26)