Caldera

Eruptions

Category archives for Caldera

Chaiten erupting in May 2008. Image courtesy of ONEMI. Speaking of anniversaries, this weekend is the one-year mark for the Chaiten eruption (in spanish) in Chile, the first eruption at the volcano in ~9,000 years. Yes, indeed, the rhyolite eruption that caught most everyone by surprise is still going strong one year later, with two…

Well, after lamenting the slow volcano news, things are beginning to pick up again. Beyond the news of a potential increase in activity at Anak Krakatau, there are a few other newsworthy bits that have come up: Mt. Kerinci in Indonesia Mt. Kerinci in Indonesia is showing signs of eruption. The volcano is the highest…

Anak Krakatau erupting in 2007. There is a report out tonight that activity might be increasing at Anak Krakatau in Indonesia, however, it is unclear whether it is actually increasing or not. People are evacuating the coastal area of the Sunda Strait to Bandarlampung in fear that a major eruption of the volcano is on…

Chaiten erupting on January 19, 2009. Image courtesy of the NASA Earth Observatory. It is hard to believe that we are less than one month away from one-year anniversary of the beginning of the eruption at Chaiten (and with it, the one-year anniversary of this blog!) The volcano in southern Chile is still erupting away,…

Fernandina volcano in the Galapagos. Fernandina in the Galapagos has entered a new eruptive phase according to the Geophysical Institute (GI) at the National University of Ecuador (in spanish). Satellite images show a new crater and ash column from the volcano and the GI will look for evidence of new lava flows beyond the “hot…

Tambora, Indonesia There are big eruptions, then there are big eruptions. On April 10, 1815, Tambora, a volcano in Indonesia, produced one of the largest eruptions in human history. This eruption produced what became known as the “year without a summer” after the volcanic aerosols from the eruption produced some of the coldest summers in…

Eruption at Yellowstone Lake

Yellowstone Lake eruption, April 1, 2009 Well, after all the seismicity and uplift at Yellowstone caldera over the last few years, something finally happened. Early this morning, without much warning, an eruption occurred in Yellowstone Lake (see above) and sent steam and ash up 50,000 feet above the park. Luckily, no one was injured or…

Details on the Tongan Eruption

Now that people have been able to get a better look at the are about Hunga Tonga Hunga Ha’apai, we’ve been able to get a better idea of what sort of eruption occurred. The explosions and ash/tephra from the eruption have all but wiped out life on Hunga Ha’aapai, as the island contains one of…

Mixing volcanoes and oceans seem to always produce exciting results. Whether it is something as simple as the ocean entry of a lava to something as impressive as a new island emerging, formed by volcanic eruption. Back in the 1960s, a previous unknown undersea volcano off the coast of Iceland erupted to form the island…

The eruption of Hunga Tonga Hunga Ha’apai volcano in Tonga looks to be a big one. Keleti Mafi, head of the Tongan geological service, calls this “a very significant eruption, on quite a large scale”, which is no surprise considering some of the spectacular picture we saw of the eruption yesterday. In fact, the eruption…