Run volcano, run

Volcanoes make for good sport. Golf comes to mind as an example: volcanoes can provide a great opportunity to improve performance. The summit crater of a volcano is conveniently large, greatly increasing the chance of a hole-in-one. It would look even better if the impact of the ball triggers an eruption, celebrating the win with…

The Katla eruption of 1918

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 scene for an even worse war to come. Far away, Puerto Rico lay in ruins after a magnitude-7 earthquake on…

The heat is on

Tyger Tyger, burning bright,In the forests of the night (William Blake, The Tyger) Lava is lovely. The warm (or hot) red colour gives it beauty, and the intricate movement of a lava flow makes it mesmerizing. But it is at night that the lava really comes to life. What appeared shiny black in the light…

The shaking ground of Campi Flegrei

I loved Naples. It is a lively Mediterranean city where there is always something going on. The people are amazing. I was told (a long time ago) by someone whose wife was from there that they were visiting the city, and his wife went somewhere and had told him in no uncertain terms to stay…

The land between the mountains

Double, double toil and trouble; Fire burn and caldron bubble Do you remember that famous Australia TV soap where everyone in the town helped each other with their mini-crises, such as ‘who took my surf board’ and where the life guard walked around the beach in their swimmers? (I may be getting confused here with…

Sun storm: the Carrington event

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. The Arabian historian Ibn Abi Zar wrote about it more than 400 years later, from the ancient…

The collapse of Anak Krakatau

The parent is famous. The shock waves of the eruption of Krakatoa in 1883 reverberated around the world – in the atmosphere, in the sea and in the news media. This was the first large eruption in the era of instant communication. The eruption itself was luckily on an island at some distance from human…

The story of Sydney

It is a spectacular city. The harbour bridge and the opera house are instantly recognizable, but scratch only the surface. Once those have been seen, it is time to explore the real city with its dense flocks of boats parked everywhere along the shore, the busy centre with the Queen Victoria shopping centre, the cliff…

Mountain of the Night: the lost Mars volcano

It should be easy to recognize a volcano. They stand high above the surrounding land, a singular cone which couldn’t really be anything else. Of course, they may not stay that way. Erosion may destroy the shape. A big explosion may replace the cone with a crater. Or there may never have been a cone,…

M stands for magma: the Socorro cover-up

The mountain got its name in 1911 when students of the local university, named New Mexico School of Mines, climbed up the hill and painted a 50 meter tall letter ‘M’ near the summit. Other Mines schools had their letter, so why not Socorro? And of course it had to be bigger than the other…