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DISASTER QUIZ: Sample Q & As

BEING PREPARED
How much emergency water should you store
At least 3 litres per person per day for a minimum of three days

List three emergency survival items
Emergency food and water
Radio and torch and spare batteries
First aid/essential medicines

What are some of the important documents you'd want to grab in a hurry in an emergency evacuation
Birth/marriage certs
Drivers licences/passports
Family photos
Insurance policies

EARTHQUAKES
How many earthquakes happen in New Zealand each year?
Scientists measure about 10,000 to 15,000 earthquakes each year.

How many quakes are big enough to be felt in NZ each year
100 to 150 quakes

What is the biggest earthquake ever recorded?
The largest earthquake recorded in the world in the last 200 years was the 1960 magnitude 9.5 earthquake in Chile. It caused 5700 deaths and created a large tsunami.

What is the biggest known earthquake in New Zealand?
The magnitude 8.2 Wairarapa earthquake of 1855.

When was the Hawkes Bay or Napier quake
1931 magnitude 7.8

How often do big earthquakes occur?
On average, New Zealand can expect several magnitude 6 earthquakes every year, one magnitude 7 every 10 years, and an 8 every century. But large earthquakes are not evenly spaced, and they sometimes arrive in bunches.

Dates of major quakes
Edgecumbe 1987 – Magnitude 6.3
Inangahua 1968 Magnitude 7.1 . 3 dead
Murchison in the Buller region 1929 Magnitude 7.8
Napier/Hawkes Bay – 1931 – Magnitude 7.8. Biggest NZ quake since instrumental recording began. Largest loss of life and greatest damage in NZ. 256 dead.

How many major faults are there in the Wellington region
5

Name the faults in the Wellington region

  • The Wairarapa Fault ruptured in 1855 generating an earthquake of about magnitude 8.2. This fault has a recurrence interval of 1150–1200 years.
  • The Ohariu Fault ruptured about 1100–1200 years ago, and has a recurrence interval of 1500–5000 years.
  • The Wairau Fault last ruptured more than 800 years ago and has a recurrence interval of 1000–2300 years.
  • Shepherds Gully Fault last ruptured about 1200 years ago and has a recurrence interval of 2500–5000 years.
  • The Wellington Fault last ruptured between 300 and 500 years ago producing an earthquake of about magnitude 7.6. This fault produces a large earthquake about every 500 to 700 years. This is why the Wellington Fault has the highest probability of rupturing next in the Wellington region.

What’s the difference between magnitude and intensity?
Magnitude is a measure of the size of an earthquake and can be related to the amount of energy released at the focal point. It can be likened to the power of radio or television waves sent out from a broadcasting station. Intensity is how well you receive the signal, which can depend on your distance from the energy source, the local conditions, and the pathway the signal has to take to reach you. Intensity is measured on the Modified Mercalli scale — a 12-point scale that represents the intensity of ground-shaking, or destructiveness of an earthquake.

Who was Mercalli
Mercalli was an Italian seismologist who developed the Mercalli scale for measuring quakes in the early 20th century

How much energy is released in an earthquake
A magnitude 5 earthquake releases as much energy as the Hiroshima atomic bomb — the equivalent of 15 kilotons of TNT. A magnitude 6 is equivalent to 30 Hiroshima bombs. Alternatively, a magnitude 7 quake releases about a million times more energy than a magnitude 3 quake.

STORMS/FLOODS
When did Cyclone Bola hit NZ
March 1988

What was the new weather term coined after the storms of June 2002 which hit many parts of the North Island, and in particular the Thames Coromandel area.
Weatherbomb

Name the two cyclones that caused havoc in 1996/1997
Cyclone Fergus and Cyclone Drena caused flooding in the north. Triggered major exodus of thousands from holiday camping grounds in the north.

What is NZ’s most frequent and damaging hazard. Biggest cause for civil defence declarations
Flooding

When did Southland and Otago experience their worst floods in the last 100 years
1999

What was the name of the Cyclone that caused the Wahine disaster and when
Cyclone Giselle in April 1968

What was the name of the log carrier that got into trouble off the coast of Gisborne in Feb 2002
Jodie F Millenium

VOLCANOES
What is the scientific name for molten rock
Magma

Dates of eruptions
1846 – Waihi (Lake Taupo) 60 killed
1886 – Tarawera eruption 108 killed
1914 – White Island(NZ’s most active volcano) 11 killed
1953 – Tangiwai lahar and flood . 151 killed
1995/96 - Ruapehu

Name 3 NZ Volcanoes
Ruapehu/Egmont or Taranaki/Tarawera/Tongariro/Ngauruhoe/Taupo/Okataina
Link to more on NZ Volcanoes

How many volcanoes are there in the Auckland region
Fifty

Name two volcanoes in the Auckland region
Albert Park; Ash Hill; Crater Hill; Domain; Green Hill; Hampton Park; Hopua; Kohuroa; Little Rangitoto; Mangere Lagoon; Matakarua; Maungataketake; McLennan Hills; Motukorea; Mt Albert; Mt Cambria; Mt Eden; Mt Hobson; Mt Mangere; Mt Richmond; Mt Roskill; Mt Smart; Mt St John; Mt Victoria; Mt Wellington; North Head; One Tree Hill; Onepoto; Orakei Basin; Otara Hill; Otuataua; Panmure Basin; Pigeon Mountain; Pukaki; Pukeiti; Pukekiwiriki; Puketutu; Pupuke; Purchas Hill; Rangitoto; Robertson Hill; St Helliers; Styaks Swamp; Tank Farm; Taylor Hill; Te Pouhawaiki; Three Kings; Waitomokia; Wiri Mountain.

Name three volcanoes in the Kermadecs
Raoul/ Macauley/Curtis

How long ago did the Taupo volcano erupt
1800 years ago- thought to be the world’s most violent eruption in the last 5000 years.

Links to Facts and Figures about main hazards/ What to do information
Civil Defence declarations since 1967
Earthquakes
Volcanoes
Tsunami
Floods
Storms
Landslides
Being Prepared