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Q1C · Explain in brief any five mitigation measures adopted for Earthquake Disaster Managem…

2023-12-04 · Semester V final

Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7

Q1C. Explain in brief any five mitigation measures adopted for Earthquake Disaster Management. [5 marks]

Answer

Definition. Earthquake risk reduction combines safe construction, non-structural safety, preparedness and coordinated response. Precise earthquake prediction is not a dependable safety strategy.

Before shaking

  • Get qualified assessment of vulnerable structures; retrofit where needed and enforce safe design.
  • Secure shelves, cylinders and heavy objects; keep heavy items low.
  • Prepare a family communication plan, emergency kit and accessible evacuation arrangements. Practise Drop, Cover and Hold On.

During shaking

Indoors, Drop, Cover and Hold On: get low, protect your head and neck under sturdy cover where possible, and hold on. Keep away from glass. Do not rush towards stairs or lifts while the building is shaking. Outdoors, move away from buildings and overhead lines if safe. In a vehicle, stop in a safe clear place away from bridges and hazards and remain inside until shaking stops.

After shaking

Expect aftershocks. Leave a damaged building by a safe route when shaking stops; do not use lifts or re-enter until cleared. Avoid damaged utilities and flames near suspected gas leaks. Follow official information. On a threatened coast, strong or long shaking is a reason to follow tsunami evacuation procedures without waiting at the beach.

Agency responsibilities

  1. Response: rapid assessment, search and rescue, emergency care, firefighting, accessible shelter, communication and restoration of critical services.
  2. Recovery: inspect and repair lifelines, restore housing and livelihoods, support mental health, and document damage.
  3. Mitigation: revise unsafe siting and strengthen critical buildings rather than reproduce previous weaknesses.

Cordon-off zones

A cordon is a controlled boundary around a dangerous site. Authorities assess hazards, mark the perimeter, create controlled access points, communicate restrictions and keep responder routes clear. Exclusion zones keep the public away from high danger; restricted zones permit specified authorised tasks; safe assembly areas provide refuge. Distances depend on the incident. Do not treat “gold, silver and bronze” as universal fixed-distance hazard rings: those terms are also used for command levels.

Earthquake early warning detects a rupture that has already begun and may warn some locations before strong shaking arrives. It is not a prediction of an earthquake days in advance, and nearby locations may receive little or no useful warning.