Where Volcanoes Are Born Most volcanoes form at the boundaries of Earth's tectonic plates, which are huge slabs of crust and ...

Lava is molten rock from a volcano that reaches the Earth’s surface. Liquid rock below the Earth’s surface is referred to as magma. More than 50% of the world’s active volcanoes above sea level ...

Natural disasters, from wildfires, floods and mudslides in western states to large earthquakes in Japan, have rocked, burned and flooded parts of the world in the first months of 2025. What’s next?

California has seven active volcanoes, each with a unique eruption history, categorized by type and threat level. The USGS monitors these volcanoes, providing information to authorities and the public ...

Lava flows create a map-like pattern on black basalt rocks at Iceland’s Fagradalsfjall volcano, which erupted in March 2021 for the first time in nearly 800 years. On June 2, 2025, Italy’s Mount Etna, ...

The volcano has been periodically erupting over the past month. One of the world’s most active volcanoes, located in Kilauea, Hawaii, erupted for the seventh time since December, according to the U.S.

Italy's Mount Etna lays claim to several titles. It is: The world's most active "stratovolcano" Europe's largest and most active volcano One of the best-monitored volcanoes in the world One of the ...

On June 2, 2025, Italy’s Mount Etna, one of Earth’s most active volcanoes, erupted again, releasing what experts called a “lava fountain” that sent tourists rushing downhill to safety. In late March ...