Where is earthquake free zone on earth?

There isn't a truly "earthquake free" zone on Earth; theoretically, earthquakes can strike anywhere, at any time. Historically, though, 81 percent of earthquakes occur along the rim of the Pacific Ocean (which includes Chile, Central America, Mexico, and the West Coast of the United States). The other two "belts" known for earthquakes are the Alpide (which extends through the Himalayas to the Mediterranean and out into the Atlantic) and the one that follows the submerged mid-Atlantic ridge.