Japan’s iconic peak has been secretly doing something surprising, and scientists have just figured out why. When the ground around a volcano starts to bulge, it sets off alarm bells. Known as ground ...

Add Yahoo as a preferred source to see more of our stories on Google. The volcano, known as Klyuchevskoy (or sometimes Klyuchevskaya Sopka), is an active stratovolcano in Russia's Kamchatka Peninsula, ...