Cascades

Eruptions

Category archives for Cascades

Mt. Hood in Oregon, taken August 2008. Image by Erik Klemetti. Click on the image to see a larger version. Quick news! I’m not going to go into too much depth right now about the recent study published in Nature Geoscience on Mt. Hood in Oregon – I plan to talk about it more in…

Climate, volcanism and the Andes

The northern Chilean and southern Peruvian Andes are full of volcanoes that look stunning – I mean, jaw-dropping details of volcanism litter the landscape. The reason for this is two fold: (1) there is an awful lot of volcanism in the northern Chilean/southern Peruvian Andes (as known as the Central Volcanic Zone) – and has…

A few very quick hits: Ever-looming Mt. Rainier, with Tacoma, Washington in the foreground. PHIVOLCS is pondering whether to lower the Alert Status at Taal back to Level 1. The volcano has been on Alert Level 2 for the past month after increasing signs of potential eruptive activity. However, seismicity is down at Taal, so…

So, I’ve had requests on the blog to help to do some defining of volcanologic terms on the blog, so I thought I’d try a new column called Eruptions Word of the Day. I’m not sure how often it will run, but let’s give it a try. Eruptions Word of the Day for July 5,…

Last year I mentioned the fundraiser for the excellent Mt. Baker Volcano Research Center – and lo and behold, I will mention it again. The new 2010 t-shirts are out and you can purchase one to support one of the best volcano research sites on the web (and off the web) – with a plethora…

News, news, news! Ash from Eyjafjallajökull piling up on a roof at Seljavellir. Image courtesy of the IMO, by Ari Tryggvason. The latest from Eyjafjallajökull has the volcano continuing to puff away – producing intermittent airspace closures over Europe. The Icelandic Met Office reports a ~7 km (21,000 foot) ash plume, but they note that…

Part 2 of your recollections of the May 18, 1980 eruption of Mount St. Helens. You can read Part 1 here. You can also check out an amazing set of satellite images spanning 1979-2010 at the NASA Earth Observatory. Great stuff! ————————————————————————————————- Eruption plume from Mount St. Helens on May 18, 1980. Image courtesy of…

Some news for a sleepy Monday: Mt. Hood in Oregon. The ash from Eyjafjallajökull is, once again, causing significant airspace closure over northern Europe – close of 1,000 flights today. However, much of the closures are fairly short-lived, but that isn’t keeping people happy. The eruption hasn’t actually changed much, just that the winds are…

May 18, 2010 marks the 30th anniversary of the dramatic eruption of Mount St. Helens in Washington state. Now, rather than recount the event when the USGS and the Cascade Volcano Observatory have done such an excellent job, I turn it over to all the Eruptions readers and their memories of the eruption. Now, as…

Time to play a little catch up … Eyjafjallajökull erupting in early May. Image by and courtesy of Martin Rietze. A brief update on our friend Eyjafjallajökull – the eruption plume from the volcano was considerably taller yesterday, reaching 6-9 km (20,000-30,000 feet), but prevailing winds meant the ash hazard was confined to areas in…