This eruption is considered the most powerful in recorded history, with a Volcanic Explosivity Index (VEI) of 7. It spewed massive amounts of volcanic ash and sulfur dioxide into the atmosphere.

Mount Vesuvius’s eruption in 79 AD is perhaps the most famous volcanic eruption in history, primarily due to its catastrophic impact on the Roman cities of Pompeii and Herculaneum. This explosive ...

The power of such eruptions is measured using the Volcanic Explosivity Index (VEI), which is a scale that goes from one to ...

How the Largest Volcanic Eruption in Human History Changed the World. Read about the volcano that some believe almost wiped humans off the planet. Donald R. Prothero. January 24, 2025.

Mount Tambora changed the world. In 1815, the Indonesian volcano exploded in the most powerful eruption in recorded history, sending an enormous plume of tiny sun-reflecting particles high into ...

In East Africa's Afar Depression, scientists have discovered that fresh lava from deep within the Earth's mantle is driving ...

Decoding volcanic ‘crystal balls’ can help scientists tell ahead of time when a volcano is going to erupt Crystals hold a secret history of volcanoes – and clues about future eruptions Home ...

A volcanic eruption in the South Pacific was so powerful that its shockwaves left the planet and reached space, new research shows.. The 2022 underwater Hunga Tonga-Hunga Ha‘apai eruption, one ...

Nearly 50 volcanic eruptions have been recorded this year, and more are expected. ... Though it last erupted in 2015, it has a history of more than 50 eruptions over the past 800 years.

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 ...

The 1980 eruption cycle made Mount St. Helens one of the most famous volcanoes in the Cascades. But it is far from the only volcano in the range.