Today is 170 years since the destruction of Lisbon. The earthquake of All Saints day 17550 in Lisbon changed a nation and is still remembered across the continent. Hence a republication of our ...

A fun question: which are the southernmost, most equatorial and northernmost volcanoes in the world? We need to add two provisos here, otherwise this question is impossible to answer: the volcano ...

The Earth is full of riches. Once people discovered the importance of metals, they quickly found out where to get them from. The first mined metal may have been copper. When mixed with tin, this ...

Iwo Jima is famous. The battle between the US and Japanese forces are well remembered – by both sides. Before the war, about 1000 people lived here. After the war, none. There is a military base only.

Living near the sea can be good. First and foremost, the sea provides a food supply in the form of fish and shellfish which is available throughout the year. The open water provides fast transport ...

On 15 July, a video of an explosive eruption of Erta Ale (Afar Region, Ethiopia) volcano was briefly discussed in the comment section. It was a small ash plume emerging from the summit of the ...

The last time I wrote an article here, it was to talk about Afar Region volcanoes, and I promised more to come. This is still a project that I have in mind, but that will have to wait a little longer ...

A top-secret development on Mount Rainier came out in the open this morning. There was widespread surprise and excitement when people in Tacoma and Seattle saw a rocket launched from the summit of the ...

These are not eruptions like we have seen in modern times. The two largest eruptions of the past 2000 years are Tambora in 1815, and Taupo around 200 AD. They ejected around 150 km 3, decent VEI-7’s ...

To me, it’s an eruption because it’s throwing rocks and it’s on a volcano. It could be phreatic or magmatic. It’s phreatic if it’s driven by heated groundwater, or magmatic gasses from an intrusion, ...

Iceland can do surprises. Its main activity is in a limited number of volcanoes which can erupt anytime, with frequencies ranging between once per century to twice per decade. These are the usual ...

The lava flow running east is the one produced in January-March. The blacker ash covers around 20km>sup>2 in this image. That suggests a volume of 0.01 to 0.001 km 3: no more than a VEI 2. The convent ...