Calamity
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Rating

Nepal risk rating

Last activity grade, not currentAindex 12.0/100
Operational statusGreen, expired
Last updated9d ago

Expired, last assessment only · Model activity-rating-2

Computed: 2026-10-04 12:47:35 UTC · Valid until: 2026-10-04 14:47:35 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

Summed event intensity1615.8/100
Scenario weight00.0/100
Cumulative urban PEI1413.7/100
CFI activity proxy2121.0/100

Recorded hazard contributions

Air Quality

Mean event index: 40/100 · Eligible records: 2

Rating history

  1. AtoAindex 15 → 109d ago
    Activity score changed from 15 to 10Current dominant event: Unhealthy Air Quality (AQI 166) (CalamityScore 46); cause of change not attributedseverity component 21.6 → 15.0population component 13.7 → 5.9forecast component 25.5 → 21.0

    Activity score changed from 15 to 10. Current dominant event: Unhealthy Air Quality (AQI 166) (CalamityScore 46); cause of change not attributed. severity component 21.6 → 15.0. population component 13.7 → 5.9. forecast component 25.5 → 21.0. Context: EVENT: Unhealthy Air Quality (AQI 166) — NP Detected: 2026-10-04T06:56:00.000Z CalamityScore: 46/100 Severity: medium URBAN EXPOSURE INDEX: 58,993 weighted city population units; not unique people or a census of the affected area CONTEXT: Country: NP. 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.

  2. BtoAindex 21 → 15Yellow → Green9d ago
    Country rating changed from B to A (score 21 → 15)Operational status changed from yellow to greenCurrent dominant event: Unhealthy Air Quality (AQI 166) (CalamityScore 50); cause of change not attributedseverity component 30.8 → 21.6population component 23.6 → 13.7forecast component 27.0 → 25.5
  3. AtoBindex 11 → 21Green → Yellow9d ago
    Country rating changed from A to B (score 11 → 21)Operational status changed from green to yellowCurrent dominant event: Unhealthy Air Quality (AQI 153) (CalamityScore 50); cause of change not attributedseverity component 17.4 → 30.8population component 0.0 → 23.6forecast component 25.5 → 27.0
  4. BtoAindex 22 → 11Yellow → Green9d ago
    Country rating changed from B to A (score 22 → 11)Operational status changed from yellow to greenCurrent dominant event: Unhealthy Air Quality (AQI 156) (CalamityScore 29); cause of change not attributedseverity component 36.6 → 17.4population component 17.7 → 0.0forecast component 28.5 → 25.5
  5. AtoBindex 15 → 22Green → Yellow9d ago
    Country rating changed from A to B (score 15 → 22)Operational status changed from green to yellowCurrent dominant event: Unhealthy Air Quality (AQI 156) (CalamityScore 50); cause of change not attributedseverity component 21.6 → 36.6population component 11.8 → 17.7forecast component 25.5 → 28.5
  6. AtoAindex 20 → 15Yellow → Green9d ago
    Operational status changed from yellow to greenCurrent dominant event: Unhealthy Air Quality (AQI 157) (CalamityScore 50); cause of change not attributedseverity component 30.8 → 21.6population component 17.7 → 11.8forecast component 27.0 → 25.5
  7. BtoAindex 22 → 2010d ago
    Country rating changed from B to A (score 22 → 20)Current dominant event: Unhealthy Air Quality (AQI 153) (CalamityScore 50); cause of change not attributedseverity component 31.6 → 30.8population component 25.5 → 17.7
  8. AtoBindex 15 → 22Green → Yellow10d ago
    Country rating changed from A to B (score 15 → 22)Operational status changed from green to yellowCurrent dominant event: Unhealthy Air Quality (AQI 151) (CalamityScore 50); cause of change not attributedseverity component 21.6 → 31.6population component 13.7 → 25.5forecast component 25.5 → 27.0
  9. AtoAindex 8 → 1510d ago
    Activity score changed from 8 to 15Current dominant event: Unhealthy Air Quality (AQI 184) (CalamityScore 50); cause of change not attributedseverity component 11.6 → 21.6population component 0.0 → 13.7forecast component 22.5 → 25.5
  10. AtoAindex 17 → 810d ago
    Activity score changed from 17 to 8Current dominant event: Unhealthy Air Quality (AQI 154) (CalamityScore 29); cause of change not attributedseverity component 25.0 → 11.6population component 17.7 → 0.0forecast component 25.5 → 22.5
  11. BtoAindex 21 → 17Yellow → Green10d ago
    Country rating changed from B to A (score 21 → 17)Operational status changed from yellow to greenCurrent dominant event: Unhealthy Air Quality (AQI 154) (CalamityScore 50); cause of change not attributedseverity component 29.8 → 25.0population component 25.5 → 17.7forecast component 27.0 → 25.5
  12. AtoBindex 12 → 21Green → Yellow10d ago
    Country rating changed from A to B (score 12 → 21)Operational status changed from green to yellowCurrent dominant event: Unhealthy Air Quality (AQI 155) (CalamityScore 50); cause of change not attributedseverity component 15.8 → 29.8population component 11.8 → 25.5forecast component 22.5 → 27.0
  13. AtoAindex 19 → 1210d ago
    Activity score changed from 19 to 12Current dominant event: Unhealthy Air Quality (AQI 163) (CalamityScore 50); cause of change not attributedseverity component 25.8 → 15.8population component 25.5 → 11.8forecast component 25.5 → 22.5
  14. AtoAindex 20 → 19Yellow → Green11d ago
    Operational status changed from yellow to greenCurrent dominant event: Unhealthy Air Quality (AQI 163) (CalamityScore 50); cause of change not attributedseverity component 27.2 → 25.8
  15. AtoAindex 9 → 20Green → Yellow11d ago
    Operational status changed from green to yellowCurrent dominant event: Very Unhealthy Air Quality (AQI 203) (CalamityScore 57); cause of change not attributedseverity component 10.0 → 27.2population component 13.7 → 25.5forecast component 18.0 → 25.5
  16. AtoAindex 15 → 911d ago
    Activity score changed from 15 to 9Current dominant event: Unhealthy Air Quality (AQI 167) (CalamityScore 50); cause of change not attributedseverity component 21.6 → 10.0forecast component 25.5 → 18.0
  17. AtoAindex 5 → 1511d ago
    Activity score changed from 5 to 15Current dominant event: Unhealthy Air Quality (AQI 159) (CalamityScore 50); cause of change not attributedseverity component 5.8 → 21.6population component 0.0 → 13.7forecast component 18.0 → 25.5
  18. AtoAindex 9 → 5Orange → Green11d ago
    Operational status changed from orange to greenCurrent dominant event: Unhealthy Air Quality (AQI 164) (CalamityScore 29); cause of change not attributedseverity component 14.4 → 5.8forecast component 22.5 → 18.0
  19. AtoAindex 12 → 9Green → Orange11d ago
    Operational status changed from green to orangeCurrent dominant event: Hazardous Air Quality (AQI 443) (CalamityScore 43); cause of change not attributedseverity component 15.8 → 14.4population component 11.8 → 0.0
  20. AtoAindex 20 → 12Yellow → Green11d ago
    Operational status changed from yellow to greenCurrent dominant event: Unhealthy Air Quality (AQI 151) (CalamityScore 50); cause of change not attributedseverity component 30.8 → 15.8population component 17.7 → 11.8forecast component 27.0 → 22.5
Forecast for NepalActive events in Nepal