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QUESTION 13 A topographical map of an island is shown. | Key @© Epicentre of recent earthquakes of magnitude 4 or greater The location with the highest risk of a tsunami is (A) I. (B) IL. (C) IU. (D) IV.
QUESTIONS 16 & 17 P-waves and S-waves travel through the Earth at different speeds. When the time between the arrival of P-waves and S-waves is one minute the epicentre is about 800 km away. The figure below is a flat grid representing an area on the surface of the Earth. 44 — ) ) 49 +++ |++ '— — a ee oe | 36 oot ooo oo kT Hundreds 24 | of kilometres 22 '>—————— > north of 0 | (0 0) 1g@}/-++ +++ +++ *M 12} Sp toto 0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 Hundreds of kilometres east of (0 0) QUESTION 16 An earthquake is recorded by a seismometer at M. The time difference between the arrival of the corresponding P-waves and S-waves at M is two minutes. Of the locations marked on the grid above which is the most likely location of the epicentre? (A) K (B) L (C) N (D) T
QUESTION 17 If the epicentre of a different earthquake is determined to be 3000 km from N 2400 km from T and 1800 km from L which of the following points would best represent the epicentre’s location? (A) M (B) Q (C) R (D) U
QUESTION 18 Elevation data for four volcanoes is shown. Elevation above mean (m) Mar 2022 3.1 4.6 3.7 2.6 Jun 2022 3.2 4.8 3.5 2.6 Dec 2022 Jan 2023 Mar 2023 Jun 2023 Which volcano is most likely to erupt in the near future? (A) 1 (B) 2 (C) 3 (D) 4
QUESTION 4 (6 marks) Determine if the variables used in Stimulus 2 in the stimulus book are suitable for predicting volcanic eruptions. Justify your response with data from the stimulus.
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