1a2 marks
Identify the magnitude on the Richter scale of the earthquakes labelled Y and Z in Figure 1.1.

1b2 marks
Name two other scales which can be used to measure earthquakes.
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Syllabus Edition
First teaching 2025
First exams 2027
Exam code: 0460 & 0976
Identify the magnitude on the Richter scale of the earthquakes labelled Y and Z in Figure 1.1.
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Name two other scales which can be used to measure earthquakes.
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Assess the extent to which technology can reduce the impacts of volcanic eruptions.
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