Sep. 30, 2024 — The Hunga Tonga underwater volcano was one of the largest volcanic eruptions in history, and now, two years later, new research has revealed its main ... Extinct Volcanoes a ...

An increase in the number of earthquakes under a volcano near Alaska's largest city this year has geologists paying attention.Mount Spurr, about 80 miles northwest of Anchorage, last erupted in ...

71.1 x 101 cm. (28 x 39.8 in.) ...

Geologists are monitoring a volcano near Alaska's largest city after an increase in earthquakes underneath it - which could signal a coming eruption. Mount Spurr last erupted in 1992, blowing a ...

A volcano erupts in downtown Los Angeles and a city official and a seismologist try to stop its inevitable flow through the city.

Volcanoes affect different places in different ways. They cause more damage in poorer countries, where there are fewer resources to predict and prepare for them.

The most acidic natural inland waters are the lakes that lie in the craters of volcanoes, like Kawah Ijen in Indonesia. These lakes are so rich in sulfuric acid that they may have a pH as low as 0.1.