Rating
Samoa risk rating
Expired, last assessment only · Model activity-rating-2
Computed: 2026-09-27 18:31:16 UTC · Valid until: 2026-09-27 20:31:16 UTC
Coverage is selective. Missing or expired assessments do not mean zero hazard. Scores are heuristic indices, not calibrated probabilities. Model cards and limits
- state:
- partial
- missing Country:
- unassessed
- country Limit:
- 100
- forecast:
- assessed
- population Metric:
- urban event exposures not unique people
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.
Rating components
Recorded hazard contributions
Mean event index: 16/100 · Eligible records: 1
Rating history
- AtoAindex 12 → 8Yellow → Green24d agoOperational status changed from yellow to greenCurrent dominant event: M 5.3 Earthquake (CalamityScore 18); cause of change not attributedseverity component 17.0 → 9.4forecast component 31.5 → 25.5
Operational status changed from yellow to green. Current dominant event: M 5.3 Earthquake (CalamityScore 18); cause of change not attributed. severity component 17.0 → 9.4. forecast component 31.5 → 25.5. Context: EVENT: M 5.3 Earthquake — WS Detected: 2026-09-17T06:42:41.657Z CalamityScore: 18/100 Severity: medium HISTORICAL CONTEXT: Location: WS region. Consult current official local emergency instructions. This automated index does not issue evacuation orders. No scenario matched the configured rules; this does not establish absence of risk.
- AtoAindex 4 → 12Green → Yellow25d agoOperational status changed from green to yellowCurrent dominant event: M 5.5 Earthquake (CalamityScore 20); cause of change not attributedseverity component 3.6 → 17.0forecast component 18.0 → 31.5
- AtoAindex 14 → 10Yellow → Green203d agoOperational status changed from yellow to greenM 5.9 Earthquake (CalamityScore 17)
- AtoAindex 14 → 12Orange → Yellow203d agoOperational status changed from orange to yellowM 6.3 Earthquake (CalamityScore 21)
- AtoAindex 12 → 14Yellow → Orange203d agoOperational status changed from yellow to orangeM 6.3 Earthquake (CalamityScore 21)