EARTH SCIENCE
EARTHQUAKES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
50
|
|
90
|
|
75
|
|
None of the above
|
Detailed explanation-1: -Earthquakes occur all over the world; however, most occur on active faults that define the major tectonic plates of the earth. 90% of the world’s earthquakes occur along these plate boundaries (that represent about 10% of the surface of the earth).
Detailed explanation-2: -Over 90% of earthquakes – including almost all of the largest and most destructive ones – happen at or near so-called plate boundaries, where the 15 or so major subdivisions (“plates”) of the Earth’s crust and uppermost mantle move towards, alongside, or away from each other.
Detailed explanation-3: -The Ring of Fire is a string of volcanoes and sites of seismic activity, or earthquakes, around the edges of the Pacific Ocean. Roughly 90 percent of all earthquakes occur along the Ring of Fire, and the ring is dotted with 75 percent of all active volcanoes on Earth.
Detailed explanation-4: -About 80% of earthquakes occur where plates are pushed together, called convergent boundaries. Another form of convergent boundary is a collision where two continental plates meet head-on.
Detailed explanation-5: -Where Do Most Earthquakes Occur? Some 80 percent of all the planet’s earthquakes occur along the rim of the Pacific Ocean, called the “Ring of Fire” because of the preponderance of volcanic activity there as well.