Revision summary
The subcontinent’s seismic hazard is old; better instruments and media make shocks more visible. Risk has risen because more people live in unsafe concrete in the Himalaya, Northeast, and crowded plains. Codes and NDMA exist; municipal enforcement, hospital retrofit, and lifeline redundancy do not match the maps. Earthquakes cannot be dated in advance; seconds of P-wave warning and drop-cover-hold still save lives. The work is inspection, retrofit, and drills, not a new prediction office.
Model answer
Copper italics in this answer — like this — are the key facts. Each one is unpacked in the Facts & figures rail.
Introduction
The Indian plate still pushes the Himalaya, and the Indian Ocean still hosts great faults. People feel that earthquakes have become more frequent because instruments, media, and dense towns record every jolt. Preparedness — codes, enforcement, hospitals, and public drills — has not kept pace with that exposure. The gap is not only a missing siren. Earthquakes are still not reliably predicted.
Body
Frequency: what has and has not increased
- Plate tectonics has not suddenly sped up; the Himalayan collision and the Andaman–Sumatra belt have always been active.
- Better seismographs and 24-hour news make moderate events visible that once stayed local, which looks like a rise in frequency.
- Population and concrete in hills, reclaimed coasts, and high-rises mean the same magnitude now kills and costs more, which is felt as “more earthquakes”.
- Aftershock sequences (for example after a large Himalayan or ocean event) genuinely raise the count of felt shocks for months; that is clustering, not a new geology.
- Reservoirs, mining, and extraction can add small induced events; they do not replace the main plate-boundary hazard.
- The honest scientific line: hazard was always high in Zones IV and V; risk (lives and losses) has risen with unsafe building and crowding.
Preparedness: what exists
- Bureau of Indian Standards seismic codes (IS 1893 and related detailing codes) tell engineers how to design.
- National Disaster Management Authority guidelines, the Disaster Management Act, and State authorities set roles for response.
- India Meteorological Department and national seismology centres locate events fast; tsunami warning after 2004 is a real gain for the coast.
- Some cities have microzonation maps; some schools run occasional drills.
Significant gaps
- Enforcement: illegal floors, soft-storey parking, and hill cutting ignore the code; a code on paper is not a safe city.
- Himalayan towns and the NCR–Bihar–Northeast stock of old brick and poorly detailed RCC will pancake in a design-level quake.
- Critical buildings — hospitals, fire stations, schools, and district offices — are often not retrofitted, so the response system dies in the same shock.
- Lifelines: bridges, water, power, and telecom lack seismic redundancy; a city can survive the shake and still die of thirst.
- Public awareness of drop-cover-hold, and of not running to stairwells, is thin outside a few metro drills.
- Insurance and reconstruction finance for the poor are weak, so a quake becomes a long poverty trap.
- Early warning can give seconds of P-wave alert for trains and lifts; India has not fully wired that for Himalayan cities.
- Prediction of date and magnitude is not available; plans that wait for a forecast will always be late.
- Cross-border risk (a Nepal-type event shaking North India) needs joint drills that are still rare.
Way forward
- Make occupancy certificates depend on real seismic inspection, not a file.
- Retrofit hospitals and schools in Zones IV and V on a published timetable.
- Update maps, ban unsafe hill construction, and practise mass casualty with the army and NDRF before the next night-time quake.
- Teach every engineer and mason in the Himalaya the same detailing rules the code already wrote.
Flow diagram
flowchart TD PL[Plate boundary hazard] --> EV[Felt events] MED[Better instruments media] --> EV UNS[Unsafe dense buildings] --> RISK[Higher loss] EV[EV] --> RISK[RISK] CODE[BIS codes NDMA] --> PREP[Preparedness] GAP[Weak enforcement no retrofit] --> RISK
Conclusion
Earthquakes have not magically become a new geology; recording, aftershocks, and unsafe growth make them feel more frequent and more deadly. India’s gap is enforcement of building codes, retrofit of lifeline buildings, public drills, and seconds-scale warning — not a missing prediction of the next date. Preparedness is masonry and governance, not a press release after each tremor.
Quick related
Students also ask
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Human right activists constantly highlight the fact that the Armed forces (Special Powers) Act, 1958 (AFSPA) is a draconian act leading to cases of human right abuses by security forces. What sections of AFSPA are opposed by the activists. Critically evaluate the requirement with reference to the view held by Apex Court.
Next question on this syllabus topic (2015 · Q17). View answer →
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Can scientists predict the next Indian earthquake?
They can map hazard and sometimes give seconds of warning after a quake starts. They cannot honestly name the date and size in advance.
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Why did a moderate quake kill so many in some towns?
Soft soil, illegal floors, and poor detailing turn a moderate magnitude into a disaster. Frequency of news is not the same as quality of buildings.
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