Undersea volcanism

Eruptions

Category archives for Undersea volcanism

Continuing my series where I try to define words of volcanic interest, the new Eruptions Word of the Day is a favorite of mine, mostly because my undergraduate thesis on Vinalhaven Island in Maine ended up dealing with a lot of these types of deposits … so, without further ado, the word is peperite! Now,…

Lots of little pieces of news I’ve run across … time to play a little catch up. Stromboli: A volcano after Don Ho’s heart. Every once in a while, my RSS feeds will dredge up some articles from years gone by … and this week there were two New York Times pieces that are a…

Our tour of the Marianas begins SW of Guam. In this area the volcanoes are submerged and make up a region known as the Southern Seamount Province. Our first stop is Tracey Seamount, which lies 30 km west of Guam. Tracey is a ~2 km tall cone and volume of ~45 km3 It is one…

The level of news-frenzy on some of the recent volcanic eruptions has died down, but if you’re looking to see information on the many rumbling going on worldwide, look no further. Here is this week’s Volcanic Activity Report put together by Sally Kuhn Sennert of the Global Volcanism Program. Highlights – not including Pacaya, Yasur,…

Quick news on Memorial Day (in the US at least): Ash soaked by rain from Tropical Storm Agatha on the roofs of homes in Guatemala after the late May eruption of Pacaya. Sixteen scientists were evacuated from islands in the northern Marianas due to the eruption of the unnamed submarine volcano south of Sarigan Island.…

Sarigan Island in the northern Mariana Islands. An undersea eruption appears to be underway south of the island. Thanks to the watchful eye of Eruptions readers, we had an inkling of this eruption the other day, but now we have confirmation that an undersea eruption is underway in the northern Mariana Islands. The exact volcano…

Hard to believe, but there is other volcano-related news in the world … So, with all deference to Eyjafjallajokull, here it is: Dome collapse on Colima in Mexico, image taken March 30, 2010. The new Smithsonian/USGS GVP Weekly Volcano Activity Report was issued, with news about increasing signs of activity at Egon in Indonesia, a…

Map showing the location of submarine volcano Marsili, near the Italian coast. Image from INGV. The subject of submarine volcanism near Italy has come up before here on Eruptions but now it has made the jump into the worldwide media after some claims made by Enzo Boschi, president of the National Institute of Geophysics and…

The Icelandic coast of Reykjanes where the Mid-Atlantic Ridge comes above sea level. A number of Eruptions readers have noticed that seismicity along the Reykjanes Ridge that runs to the southwest of Iceland onto the island has increased over the last few days. Sure enough, checking the Icelandic Met Office page on seismicity on the…

Submarine eruption near Japan

The plume from submarine volcano Fukutoku-Okanoba, erupting in February 2010. Almost a year after the Hunga Tonga Hunga Ha’apai eruption, where an undersea volcano sprang forth from the deep – quite spectacularly, we have new footage of another undersea eruption. Fukutoku-Okanoba, off the coast of Minami Iwo, started to erupt yesterday (or, at least, erupt…