There are around 450 active volcanoes in the Pacific Ring of Fire - 127 in Indonesia alone. In 2010, the Merapi on Java erupted, shooting clouds of ash 18 kilometres up into the sky.

The Pacific Ring of Fire is a tectonically active region with frequent earthquakes and volcanoes, spanning 40,000 km around ...

The United States leads the world with 165 Holocene volcanoes, mostly in Alaska, Hawaii, and the Pacific Northwest. Active ...