Kelud and Lusi

The latest from Lusi
It seems that a certain mud volcano is situated less than a 100 km away from the grumbling Mount Kelud, and it is not responding well to the increased geological activity in the area:

Separately, a so-called “mud volcano” located 68 kilometres northeast of Kelut has increased its flow to about 130,000 cubic metres per day amid the rising seismic activity in the area, Soffian Hadi Djojopranoto, deputy head of a government team monitoring the mud volcano, told AFP…

…”We have no reference to forecast what will happen if Mount Kelut erupts,” Djojopranoto warned.

It seems that seismic activity, generated by magma movement, is causing the pressure on the underground aquifer feeding Lusi to fluctuate. As for Mount Kelud itself, the alert level is still at its maximum, and the crater lake continues to bubble…

Categories: geohazards, geology, Lusi, volcanoes

A match too far

Even if I hadn’t been watching on TV, the cheers and hooting which rose into the Jo’burg night from around 10:45 pm on Saturday would have informed me that the result of the Rugby World Cup final was far more to my neighbours’ liking than my own. I can’t argue with the result: the England team gave it everything they had, but never quite reached the glorious heights of intensity and focus that they attained in the quarters and semis, and the Boks always seemed to have a slight edge. There was the matter of that disallowed try, of course, which must have been about as close to scoring as you can get without being given the points; but in the final analysis, the points we gave away by conceding silly kickable penalties exceeded those we would have gained if the video ref had plumped for the other side of the borderline.
Yes, I’m disappointed, and yes, I’m not looking forward to the next few weeks of crowing (if I’m lucky, it will just be weeks) from the magnanimous victors. But, let’s face it: if, five weeks ago, someone had offered any England rugby fan the chance to go down honourably in the final – having once more put one over the Aussies, and beaten the French, en route – to a man, we’d have bitten their hand off. The boys did us proud, and more than that, there’s some hope that their efforts may herald a slightly less depressing four years than the aftermath of 2003 proved to be.

Categories: rugby

The Jabal al-Tair eruption in close-up

I seem to be having a fairly volcanic week, so whilst we’re on the subject of volcanoes in the news, someone over at Nasa’s Earth Observatory got a satellite to snap Jabal al-Tair in the Red Sea, which erupted at the beginning of last week (click for the high-res version):

jabalaltair.jpg

Lava flows from the current eruption are probably the darker patches in the north-east quadrant. This volcano is situated on an oceanic rift zone, where decompressional melting produces basaltic melts which are both less viscous and less gassy than the likes of Mt St Helens or Vesuvius. Thus, runny lava flows are much more likely than explosive pyroclastic flows, although it seems that several Yemeni soldiers stationed on the island were still taken unawares.

Categories: volcanoes

Defusing Mount Kelud

Indonesia is certainly not a destination for those wanting the geologically quiet life; its close proximity to a subduction zone is a recipe not just for large, potentially tsunami generating, earthquakes, but also a significant number of explosive volcanoes. Mount Kelud (aka Mount Kelut – I presume this is a transliteration issue as they’re definitely talking about the same volcano) is the current focus of concern for the Center for Volcanology and Geological Hazard Mitigation, who have ordered an evacuation of 30,000 people living around its rumbling crater (pictured below in more tranquil times).

Keludlake.jpg

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Categories: geohazards, volcanoes

I like rocks and whisky…

…but rocks with whisky might be taking it a little too far.

whiskycubes.jpg

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Categories: bloggery, gifts and gadgets