Eruptions

Archives for June, 2008

Chaiten eruption worsening

The newest reports out of Chile are indicating that the eruption at Chaiten has reached levels of intensity not seen since the eruption first started over six weeks ago. I have to admit, that isn’t a good sign in terms of keeping the volcanic edifice in one piece. There have been frequent, small (<M3) earthquakes…

White Island Update

Just a quick update for today (busy watching Red Sox vs. Reds, sorry, that is my other love: baseball). New reports concerning White Island suggest that an eruption is not imminent. Although there have been earthquakes nearby, whether or not they could directly lead to an eruption is unclear, but it sounds like geologists in New…

Chaiten roars back?

So, this was a bit of a surprise to me. Six weeks into the Chaiten eruption in Chile, apparently the volcano has picked up the tempo again. Not much in the report except that apparently two new vents/craters have opened, there is an increase in ash emission and seismic activity. What this might be is…

White Island Alert

Authorities in New Zealand have issued an alert for White Island. After a fairly sizable earthquake (M=5.4) near the island, the state agency that oversees volcanoes (GNS Science) is warning people to stay away from White Island for the next 48-72 hours on fears it might erupt. Normally, just because there is an earthquake near…

Most people don’t realize that a majority of the earth’s volcanoes are underwater. That is to say, the mid-ocean ridge system that runs along the bottom of all the major oceans can be considered one big volcano. However, thanks to its location deep underwater, we have only had second- or third-hand evidence of eruptions at…

Anak Krakatau in pictures

One of the most famous eruptions in human history (at least recent history) is the 1883 eruption of Krakatau in Indonesia, made (more) famous by Simon Winchester’s book (and the inappropriately named film Krakatoa: East of Java … hint: look at a map). Since the cataclysm eruption, a new volcano has risen where the old one…

Dome collapse at Arenal

Today, I saw a report that a dome on Arenal in Costa Rica had collapsed last Friday (report in Spanish, but good picture of the event), producing a block & ash flow that left a 800-meter scar on the volcano‘s flank. No one was injured during the avalanche, but tourists were evacuated as a precaution.…

I mention this little human interest piece mostly because I am especially found of Mt. Tarawera (note: this link goes to the GVP page for Okataina, the volcanic cluster of which Tarawera is a member) in New Zealand. This Tuesday (June 10) is the 122nd anniversary of its most recent eruption, the 1886 eruption that erupted…

Cerro Azul eruption photos

I had been looking for some pictures of the recent eruption of Cerro Azul in the Galapagos, and finally I found some posted on the BBC. There are some rather stunning pictures of the rift eruption (#3), the lava flows heading downslope (over older lava flows, #4) and even a little lava spatter (#1). 

Reuters has a short video showing some of the damage inflicted on Chaiten by the volcano of the same name. Looks like the ash, lahars and flooding have wiped out at least a third of the town (according to the voice-over) … and in a sense, Chaiten (the town) lucked out as the destruction could…