A volcano is commonly defined as a vent or fissure in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber …

Sep 29, 2025 · Volcano, vent in the crust of Earth or another planet or satellite, from which issue eruptions of molten rock, hot rock fragments, and hot gases. The term volcano can also refer …

Volcanoes are openings, or vents where lava, tephra (small rocks), and steam erupt onto the Earth's surface. Volcanic eruptions can last days, months, or even years.

The meaning of VOLCANIC is of, relating to, or produced by a volcano. How to use volcanic in a sentence.

Articles, facts, information and photos for volcanoes and volcanic activity. | Geology.com

Volcanoes are Earth’s geologic architects. They’ve created more than 80 percent of our planet’s surface, laying the foundation that has allowed life to thrive. Their explosive force crafts...

Apr 22, 2024 · Know how to prepare for and protect yourself during and after volcanic eruptions.

Apr 17, 2023 · Volcanoes both build and destroy landscapes. Eruptions of lava, ash, volcanic bombs, blocks, and cinders form new land on oceanic islands, and build towering and inspiring …

Volcano Calendar 2019 We're proud to present our 2019 volcano calendar: 13 different and attractive images of volcanoes, volcanic landscapes and phenomena taken during volcano …

1 day ago · Unexpected biosignatures found in a startlingly blue volcanic goo beneath the Pacific Ocean may offer clues to life's origins.