Nevado del Ruiz

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A new Weekly Volcanic Activity Report from the Smithsonian and USGS Global Volcanism Program! Highlights from this week’s report include: Things are getting a little noisy in Colombia. I mentioned a few weeks ago about a possible explosion at Nevado del Ruiz. Now we have reports of increased seismicity under nearby Cerro Machín and ash…

Kilauea lavas on the move near Kalapana. Image taken July 17, courtesy of the Hawaiian Volcano Observatory. Some news over the last few days: The lava flows from Kilauea are moving with a vengeance right now, damaging roads and heading for some structures. The lava flows near Kalapana have moved almost 200 meters since Sunday,…

There has been news over the last few days of a number of volcanoes in Colombia, so I thought I’d try to gather it up here: The steaming summit of Nevado del Huila in Colombia Nevado del Huila has been ramping up its ash emissions, potentially pointing towards new eruptions from the crater dome. The…

The move is complete (finally) … so maybe I can settle down a bit, right? Right? The world’s deadliest volcano? Anyway, a few things I stumbled across this week: Forbes Traveler.com has a list boldly titled “World’s Deadliest Volcanoes“, which more or less is a slideshow of nice volcano pictures and some dubious ranking –…

Photo: The north flank of Mount Redoubt in early February 2009. Credit: Chris Waythomas / Alaska Volcano Observatory/U.S. Geological Survey I’ve been following the waxing and waning of activity at Mt. Redoubt in Alaska for the past two months like many of you have. For a time there, the volcano had the nation’s attention, both…

When people think about volcanic mitigation, a lot of time is spent worrying about monitoring and science. There is nothing wrong with this as we need to know what the volcano has done in the past and what it is doing now to predict its future activity. However, a very important piece of the mitigation…

Just a brief note, but today (November 13) is the 23rd anniversary of the disastrous lahar at Nevado del Ruiz in Colombia. Over 23,000 people died when a lahar, started by a relatively minor eruption of the volcano, swept down the river valleys the side of the edifice and destroyed Armero and Chinchina. The footage of…

Another shaken Colombian volcano

After the news of a sizable earthquake under Nevado del Huila, we can add Nevado del Ruiz to the list of volcanoes that have been shaken up recently. There was a M5.7 earthquake underneath Ruiz on Saturday (9/13), which is a pretty significant event. However, the earthquake was located at over 100 km depth, so likely it…

Nevado del Huila

I’ve been following these rumblings for the last few months, but it looks like Colombia’s Nevado del Huila is ramping into a new cycle of eruptions. Huila lives in the shadow of its more famous brethren Nevado del Ruiz and Galeras, both of which have had recent and tragic eruptions. Huila is not believed to…