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10. An earthquake that originates from a focal depth of less than 70km.
A. shallow-focus
C. deep-focus
B. intermediate-focus D. mid-focus



Sagot :

Answer:

A. shallow-focus

Explanation:

Earthquakes occurring at a depth of less than 70 km (43 mi) are classified as shallow-focus earthquakes, while those with a focal depth between 70 km (43 mi) and 300 km (190 mi) are commonly termed mid-focus or intermediate-depth earthquakes.

Answer:

C. deep-focus

Explanation:

In general, the term "deep-focus earthquakes" is applied to earthquakes deeper than 70 km