Eruptions

Archives for May, 2008

Tungurahua, one of the most active (and harder to pronounce) volcanoes in the Andes, has been experiencing explosions over the last few days. Not much in the report beyond the 125 explosions, increased seismicity and ashfall around the volcano. This is fairly typical behavior of Tungurahua: Strombolian-style eruptions (see the picture above for a great example)…

People living around Semeru Volcano, Indonesia, have been put on alert for a potential eruption. Indonesia’s Centre for Volcanology and Geological Hazard Mitigation has put the volcano on level 3 (of 4) alert and said “not to conduct activity at a radius of 4 kilometres from the crater, especially around the south-east of the volcano’s…

Ruapehu: Lava versus skiers

I think we know who wins this battle. At Ruapehu (New Zealand), it isn’t really the lava that is the problem, but the lahars produced by mixing snow, crater lake water and volcanic debris. However, that is not stopping people from wanting to ski on the volcano. Never ceases to amaze me how people assess…

Yellowstone: the return?

Everyone loves a “supervolcano”*. According to a recent report, Los Angeles will be erupting from underneath Yellowstone Caldera (Wyoming). OK, not really, but apparently there has been 7 cm of uplift underneath the footprint of the Yellowstone Caldera since 2004, which is a pretty good amount of uplift. Whether this uplift is caused by new…

I’ve made it back from my trip to Washington DC. The Smithsonian Institution is quite a fun place to visit, especially if rocks are your ilk. Be sure to check out the wonderful mineral collection at the Natural History Museum. I only wish the Global Volcanism Program would have a more interactive (and visible) spot…

Weekend Wrapup: Etna & Chaiten

It has been rather quiet on the volcano news front over the weekend. A couple tidbits: – There are some new data showing the sulfur dioxide flux from Mt. Etna (Italy). The image above is an eruption of Etna from 2001 (and it makes a great wallpaper). – I’ve heard very little about Chaiten lately,…

Mt. Saint Helens Anniversary

Happy 28th anniversary of the 1980 Mt. Saint Helens eruption. The volcano had a catastrophic collapse of one side of the edifice that triggered the climatic eruption. Enjoy this clip from the CBS News from 3 days after the eruption. [youtube=http://www.youtube.com/watch?v=GYP3MZY6aw0]  

Hawaiian Vog

The latest eruption at Kilauea has increased the amount of vog on the big island of Hawai’i. Vog is more or less the same as the anthropogenic “smog” produced by car/industrial exhaust, but produced by volcanic gases (carbon dioxide, carbon monoxide, sulfur dioxide, hydrogen sulfide amongst others). It definitely doesn’t make for good air quality,…

A new rift eruption at Etna?

At first it seemed like the new eruptions at Mt. Etna (Italy) were petering out rather quickly. Instead, now it seems that there are fears that a new rift might be opening on Etna, which might mean more vents for lava to erupt. Apparently there has also been some seismic activity to go along with…

On the Chaiten Front

To keep us up to date on the goings-on at Chaiten in southern Chile, well, the volcano is still erupting! Yes, two weeks in and heavy ash is still being erupted from vent. The latest reports are vague, but Chilean officials are saying things like “There’s been additional volcanic activity that we’re really worried about…” Now, I…