A "ring of fire" is visible when the moon moves between the Earth and the sun. A new "ring of fire" annular solar eclipse is coming this October and will be visible Wednesday from South America. In ...

The magnitude 8.8 earthquake that struck off Russia's Kamchatka Peninsula on July 29 may have been one of the 10 largest ever recorded on the planet, but it wasn't totally unprecedented. The ...

Scientists tracking the Pacific’s most volatile margins are watching a familiar pattern sharpen into something more urgent, as clusters of earthquakes and restless volcanoes hint at shifting stresses ...

Many of the world’s biggest earthquakes, volcanic eruptions and tsunamis occur along a chain of seismologically active regions that encircle the Pacific Ocean. By Victoria Kim Hundreds of millions of ...