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 ...

Prominence It makes sense to look beyond the elevation of a volcano to judge its size. Europe’s largest volcano is not Etna. There are several higher volcanoes in the continent, with Elbrus as the ...

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 ...

Hunting supplemented the meat. Caribou meat was especially valued. Seal meat was eaten when caribou was not available, but was not the preferred meat: the manors mostly ate caribou, the poorer farms ...

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 ...

In the previous installment, we said that there were two main sources of volcanism, tectonic driven or hotspot driven. In order to simplify things, we will examine the life cycle of an Arc Volcano, ...

October 12, 1918 was just another Saturday. On the fields of France, the Hundred Days Offensive was turning a war which would now soon end, but leave 17 million dead; the devastation would set the ...

We have lost the magnificence of the night sky. From cities we can hardly see the brightest stars, and even in dark places 100 kilometers from any city, their lights reflected of the clouds above them ...

The plot shows the number of earthquakes in the list per year. It started at low levels of 10 or less, with a slight bump around 1975-1980. This bump may not be directly comparable with modern numbers ...

A repost from 2018 with minor updates Jan 25, 880 AD, was a remarkable night. The Arabian historian Ibn Abi Zar wrote about it more than 400 years later, from the ancient city of Fez, northeast of the ...

The dikes have opposite magnetisation to that of the Pilanesberg complex itself. The emplacement may have happened over a period which included a magnetic reversal of the Earth’s magnetic field. The ...