Why some volcanoes don't explode

The explosiveness of a volcanic eruption depends on how many gas bubbles form in the magma—and when. Until now, it was thought that gas bubbles were formed primarily when the ambient pressure dropped ...

Bezymianny volcano erupts spewing thick ash more than three miles into air

The volcano spewed ash more than three miles into the air just a day after scientists warned of a possible explosive eruption - and said it could disrupt air travel in and around the site ...

Hayli Gubbi volcano erupts in Ethiopia after 12000 years: How does a dormant volcano become active suddenly

Ethiopia's Hayli Gubbi volcano has erupted after 12,000 years of silence. The powerful explosion sent ash plumes soaring kilometers into the atmospher ...
Science Daily

The mystery of volcanoes that don’t explode finally has an answer

Scientists have uncovered a long-missing piece of the volcanic puzzle: rising magma doesn’t just form explosive gas bubbles when pressure drops—it can do so simply by being sheared and “kneaded” ...
Al Jazeera on MSN

Ethiopian volcano erupts after 12,000 years: What we know

Hayli Gubbi, which rises to 500 metres (1,640 feet), is the southernmost volcano of the Erta Ale Range, a chain of low-lying shield volcanoes in the Afar region. It has had no known eruptions for ...

How do volcanoes erupt? Science explained for kids

Discover why volcanoes erupt, how magma and gases cause eruptions and why volcanoes are essential for life on Earth.