Vents that issue volcanic material (including lava and ash) and gases (mainly steam and magmatic gases) can develop anywhere on the landform and may give rise to smaller cones such as Puʻu ʻŌʻō …

Nov 26, 2025 · Strictly speaking, the term volcano means the vent from which magma and other substances erupt to the surface, but it can also refer to the landform created by the accumulation of …

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.

Apr 17, 2023 · Eruptions of lava, ash, volcanic bombs, blocks, and cinders form new land on oceanic islands, and build towering and inspiring snow-covered peaks. Volcanic eruptions are also …

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...

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

1 day ago · Photos: The Year in Volcanic Activity Scenes from the wide variety of volcanic activity on Earth over the past year Updated at 3:09 p.m. ET on December 29, 2025 By Alan Taylor December …

Although volcanic events have not caused the recent increase in Earth’s average temperature, eruptions have occurred throughout history and influence the Earth system in a variety of ways on various scales.

Dec 19, 2025 · A dormant volcano in Ethiopia erupted after 10,000 years of silence. This event shows how the world's little-known volcanoes pose the greatest threat.

Dec 18, 2025 · Discover how scientists read volcanic warning signs, track magma movement, and improve eruption prediction using seismic data, gas emissions, and ground deformation.