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Disasters - Short Trick

Earthquakes, drought, avalanches, cyclones and nuclear accidents — one sentence each

2 trick sentences2 pairs5 parts
0 / 3 learned · 0%
How to read
  • Guru Ram Each coloured word = one name in the list, shown below in the same colour
  • Panda Two colours in one word = two names
  • ➜ Order the numbered order matters · ⇄ Any order no order
1

Earthquakes

The two earthquake scales, three big earthquakes in order, and zone V — the highest hazard.

Pairs

Earthquake scales — what they measure

2 sentences

Rick found a magnet.

Richter scale=Magnitude — the energy released · each whole number up = 10 times the amplitude, about 32 times the energy · big quakes now use moment magnitude (Mw)

Meera studies intensely.

Mercalli scale=Intensity — the effect seen at a place · I to XII · one earthquake has different intensities at different places

Damage is worst near the epicentre · monitoring — National Centre for Seismology (NCS), New Delhi, since 2014.

Trick 1

Three big earthquakes

➜ oldest to newest

Bikram ate bhel and gobi manchurian.

  1. 1Bihar–Nepal earthquake1934
  2. 2Bhuj (Kachchh, Gujarat)26 January 2001 — magnitude 7.7 · about 20,000 deaths
  3. 3Gorkha earthquake (Nepal)25 April 2015 — magnitude 7.8 · about 9,000 deaths · a 7.3 shock on 12 May
Trick 2

Seismic zone V — highest hazard

⇄ Any order

Nora flew a kite from her bike while ants ate jam on the hill.

  1. North-East (all of it)
  2. Kachchh (Gujarat)
  3. Bihar–Nepal border belt
  4. Andaman & Nicobar
  5. Jammu & Kashmir
  6. Himachal and Uttarakhand (parts)

The map is the Bureau of Indian Standards’ IS 1893:2016, zones II–V in force · the old zone I was merged into zone II in 2002 · the November 2025 map with a new zone VI was withdrawn on 3 March 2026.

2

Floods, Droughts and Cloudbursts

The four types of drought, the government’s drought programmes in order, and the two Kedarnath rescue operations.

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3

Landslides, Avalanches and Volcanoes

The avalanche-prone areas of India.

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4

Cyclones

IMD’s seven cyclone warning centres and four recent cyclones.

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5

Man-made Disasters

Nuclear plant accidents in order, the Hiroshima and Nagasaki bombs, and the Bhopal gas tragedy.

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Read the full chapter for the complete notes — a trick helps you remember the list; understanding comes from the notes.