This nation is located along the Pacific Ring of Fire.

North Korea

South Korea

Japan

China

The answer is Japan. The Pacific Ring of Fire wraps around the Pacific Ocean, including countries like Japan, Canada, New Zealand and Chile. And the inhabitants within those countries are prone to intense earthquakes, volcanoes and tsunamis. North Korea, South Korea, and China are not one of the locations included in the Pacific Ring of Fire as their locations are not part of its area.