NASA finds Fuego's volcanic avalanches are still warm, weeks after violent eruption

A NASA satellite passed over Guatemala's Volcán de Fuego on June 24, and it found something intriguing.

According to data collected by the satellite — named Landsat 8 — temperatures in the chaotic avalanches the volcano blasted down its flanks three weeks earlier are still relatively high. 

Landsat 8 takes around 400 detailed images each day, and can also measure thermal conditions on the ground, leading to this finding at Fuego.  

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In Landsat's recent thermal imaging, it picked up temperatures some 4 to 6 degrees Celsius (7 to 10 degrees Fahrenheit) higher than the surrounding tropical land over long portions of this still-cooling volcanic debris. The debris was left by scorching avalanches of newly-formed rock and gas — known as pyroclastic flows — which, when erupted, measured some 1,800-degrees Fahrenheit, according to NASA.  Read more...

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