Final answer:
Earthquakes can indeed reach depths up to about 700 km in subduction zones, which play a crucial role in the cycle of plate tectonics.
Step-by-step explanation:
True, earthquakes at subduction zones can reach depths of up to about 700 km. These zones are key areas in the cycle of plate tectonics where the oceanic crust is destroyed as it is forced under a continental plate or another oceanic plate. The process of one plate sliding under another creates significant geological events, such as earthquakes and volcanoes. Depth distribution of earthquakes helps scientists understand the angle and the nature of subduction. Notably, historical earthquakes like the 1923 Yokohama earthquake, the 2004 Sumatra earthquake, and the 2011 Tohoku earthquake occurred in subduction zones, causing massive destruction and loss of life.
Answer: True