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Chilean Volcano Spews a Spectacular Lava Fountain

03/03/2015

Villarrica in Chile produced a spectacular eruption that sent a lava fountain hundreds of meters over the volcano’s summit crater (see above). The eruption spread ash over the neighboring region and an accompanying lava flow melted snow on the slopes of the volcano (see below) creating some small volcanic mudflows and debris flows. Currently, over 3,300 people have been evacuated from the small towns around Villarrica, including the vacation town of Pucón. The eruption started at ~3 a.m. (local time) and TV footage showed the deluge of lava bombs that rained down on the slopes during the peak of the eruption. The timelapse video (see below) taken by POVI shows the progression of the eruption from small explosions to the full on lava fountaining.

This eruption wasn’t entirely unexpected — over the last few weeks the volcano had been seeing increasing signs of unrest including much more activity from the summit vent. Normally a lava lake resides at Villarrica’s summit (one that you could hike to and see when conditions were right) but recently the volcano had started throwing bombs and scoria out and covering the top of Villarrica with dark grey volcanic debris. This new eruption was much more impressive than that, with a towering lava fountain producing an ash plume that reached a few kilometers above the volcano. By the time dawn broke (see below), the current eruption had ceased, but glowing lava and a thick cover of dark grey volcanic debris blanketed Villarrica. Seismicity remains high under Villarrica even after the eruption, suggesting that we likely have no seen the end of this unrest.

by WIRED