How are earthquakes distributed over the globe?

The main earthquake belts in the world are-

1. The Circum Pacific Mountain Belt — This belt has 70% of all earthquakes. A part of San Andreas Fault in the USA lies in this belt. The area of Japan, the Philippines and Indonesia all form parts of this belt.

2. The Midworld Mountain Belt — It stretches from Eastern Europe covering Alpine-Himalayan ranges in Europe and Asia. About 20% of all earthquakes occur in this zone.

3. The Mid-Atlantic Ridge — This belt comprises areas along the mid-oceanic ridges as well as many island near the ridges of the Atlantic Ocean and the remaining 10% of earthquakes occur in this belt. The Rift Valley of East Africa is considered an extension of the belt.