BharatNotes Cascading Disaster
noun phraseUsage in a UPSC answer
The 2011 Great East Japan Earthquake demonstrated the danger of cascading disasters — a 9.0-magnitude seismic event triggered a 15-metre tsunami, which in turn caused the Fukushima Daiichi nuclear meltdown, illustrating multi-hazard compounding.
Synonyms
Antonyms
Word Family
cascading disaster (n phrase), cascade (n/v), cascading (adj), disaster (n)
Root
Italian cascata = waterfall (from cascare = to fall) + Latin/Greek dis-astro = ill-starred (dis- = bad + astrum = star)
Etymology
Cascade entered English from Italian/French in the 17th century; the term 'cascading disaster' was popularised post the 2011 Fukushima nuclear disaster, which exemplified how a single earthquake triggered a tsunami that then caused catastrophic nuclear failure — a triple-cascade event now integral to Sendai Framework (2015-2030) multi-hazard analysis
Memory Hook
CASCADE + DISASTER: like a waterfall (CASCADE) where one disaster FALLS into the next — disasters cascading one after another in a chain
How This Word Works in UPSC Writing
An event in which the initial hazard triggers a sequence of secondary failures, often across different systems. The reason it matters in GS3 is that the secondary consequences frequently exceed the primary impact: an earthquake that cuts power disables water pumping, which disables hospitals, which converts a structural event into a public-health emergency. Planning built around single-hazard scenarios systematically underestimates this, which is the argument for multi-hazard and interdependency analysis.
Don’t Confuse It With
A cascading disaster propagates through interconnected systems. A compound event is two hazards occurring together, such as a cyclone during a heatwave. A secondary hazard is a single follow-on effect rather than a chain. Systemic risk is the underlying property of interdependence that allows cascades to occur.
Hindi Meaning
श्रृंखलाबद्ध आपदा (shrinkhalābaddh āpadā).
Common Questions
- What is a cascading disaster?
- A disaster in which the initial hazard triggers a chain of secondary failures across interconnected systems, often causing greater harm than the original event.
- Why do cascading disasters challenge planning?
- Because plans built around a single hazard do not anticipate failures propagating between infrastructure systems such as power, water, communications and health.
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