Where do these earthquakes happen?
They happen in places along tectonic plates, like Japan, New Zealand, and the state of California. The plates rub against each other, causing instability.
81 percent of the world's largest earthquakes happen in the Pacific Ring of Fire, a region that encompasses the coast of East Asia, Australia, New Zealand, Russia, Alaska, and the west coast of North and South America. They happen more there because that is where the world's tectonic plates meet.
The Pacific Ring of Fire.