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Yanka [14]
2 years ago
11

How does the trench help geologists discover where past earthquakes have occurred?

Geography
1 answer:
Usimov [2.4K]2 years ago
4 0
When geologists want to study an active earthquake fault, they often rely on a trenching study. ... They brace the walls, if needed, to prevent cave-ins, then they climb down into the trench and carefully map its walls, looking for signs of past earthquakes and ground movement.
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