Tuesday, February 25, 2014

Kelud, Before and After the Eruption - Wired Science Blogs

By Erik KlemettiBefore and after images of the dome area within the Kelud crater, showing how the 2007 dome was destroyed by the February XX explosive eruption. Image: Suwarno, via O S, used by permission.It has now been a few weeks since the dramatic (and unexpected) eruption of Kelud in Indonesia. Thankfully, it appears that the eruption occurred with minimal loss of life, impressive considering how close some people live to the volcano (see the images above to get a sense of that). There are still many thousands of people living in shelters around the volcano and may be there for quite some time as they wait for repairs to their homes and regional infrastructure. The conditions of these shelter camps has been of some controversy as well, with reports of no drinking water and poor sanitary conditions. Intense rain in the area of Kediri, near Kelud, has produced lahars from remobilized ash and debris of the eruption, adding to the plight of evacuees. In the images above and below, you can see some of the river drainages that come off the volcano that, even less than a week after the eruption, were full of volcanic debris. That material may have gotten there through earlier lahars or possibly even pyroclastic flows that moved down those channels. Lahars such as this will likely be a hazard for years to come (as they were for over a decade at Pinatubo in the Philippines)...
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