The highest volcano in the world is Cerro Ojos del Salado. It is a stratovolcano in South America’s Central Volcanic Zone, reaching an impressive 6893 meters above sea level (or at least above ...

The age of the subducting oceanic crust ranges from 27 million years old in the south to 80 million years old to the north. The East Scotia Ridge spreading centre cuts through the Scotia Plate from ...

The convent and monastery were closed in the reformation of 1550. But life continued, punctuated by eruptions from Katla. The next big problem though came from the other mountains, from Grimsvotn.

Deception Island. Let’s get back to the real world. Deception Island measures 14 by 13 km. It is the tip of a mountain which measures 25 kilometers across: it is a substantial volcano.

It must be the only volcano named after a British ambassador to Spain. Mount St Helens was also known as the Mount Fuji of America: a perfect cone standing above the country side. The 1980 eruption ...

Eggs are of course far older than Easter. The silly question of what came first, the chicken or the egg, has a clear answer. The oldest egg that has been found (microscopically small) is from 600 ...

The main reason it makes it into the ranking is a lava dome located on its west flank. It is called El Solo. It doesn’t have any volumes estimates that I could find so I made my own, the dome and ...

It now entered a long period of dormancy, occasionally broken by additional small eruptions of no more than a few hundredths of a cubic kilometre at a time.Also, because of the magma reservoirs being ...

Lights of the North! As in eons ago, Not in vain from your home do ye over us glow! William Ross Wallace (1819–1881) A repost from 2018 with minor updates Jan 25, 880 AD, was a remarkable night. Th… ...

The approximate crustal thickness in the vicinity of Mexico City. The TMVB is rendered in beige, some of the volcanic features have been marked in blue, Nevado de Toluca and Popcatépetl with fat ...

Richard Hodgson in Highgate, London, a retired publisher and amateur scientist, saw the flare and later wrote. While observing a group of solar spots on the 1st September, I was suddenly surprised at ...