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SCIPAD - BIG IDEAS - BOOK 2
EARTH SYSTEMS
In the previous exercise on earthquakes, you may have noticed there isn’t a correlation (a
connection) between the magnitude of an earthquake and the number of human deaths. The
table below shows the height of tsunami and the number of deaths it caused.
Location Year Height (m) Number of Deaths
Japan/Hawaii 1933 27 3 000
Japan 1944 8 1 100
USA 1946 30 170
Russia 1952 15 2 400
Japan/Hawaii 1957 16 1 400
Chile 1960 24 6 000
Alaska 1964 30 140
Philippines 1976 29 5 000
Indonesia 1979 10 190
Japan 1983 15 110
Indonesia 1994 5 220
Papua New Guinea 1998 9 2 300
Indonesia, Thailand, Sri Lanka 2004 28 230 000
Japan 2011 10 18 000
4. Plot a graph of the data shown for tsunami that occurred between 1933 and 2000.
Tsunami Wave height vs Number of Deaths (1933 - 2000)
5
6
0
0
1
2
3
4
5 10 15 20 25 30
No. of Deaths (ooo’s)
Wave Height (m)
(a) Does your graph indicate there is a correlation between wave height and the
number of deaths?
(b) Suggest three other factors that are likely to affect the number of people killed by
a tsunami, other than the height of the wave.
(i)
(ii)
(iii)