speculation

Eruptions

Category archives for speculation

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…

The Great Earthquake Swarm at Yellowstone that ushered in 2010 seems to be dying down, at least according to the USGS earthquake reports and analysis of the seismicity by the University of Utah and YVO. The daily updates on the earthquake swarms by Utah has ended. Looking at the earthquake over the last 7 days…

Steaming, gurgling mudpots in the active hydrothermal system of Yellowstone. For those of you following Yellowstone (I think there might be a few of you), I’ve plotted up the earthquakes since 1/27 (see below) – and sure enough, although there is a lot of scatter, they are getting shallower – however what this exactly means…

There has been a … ahem … healthy discussion of Yellowstone’s current earthquake swarm on Eruptions as of late. We’ve now reached ~1,500 measurable earthquakes over the last 11 days. The latest reports of the continuation of the swarm isn’t going to make anyone happy, but still, there are no signs that (a) this is…

Old Faithful geyser at Yellowstone National Park. A few thoughts about faulting, earthquakes and eruptions: The earthquakes at Yellowstone have been universally attributed to fault movement rather than magmatic activity by the USGS and the researchers at the University of Utah. This is likely based on the moment solutions for the earthquakes (i.e., the sense…

A hot spring in Yellowstone National Park. Image courtesy of the USGS. Yesterday I left a little teaser about the current earthquake swarm going on at the Yellowstone Caldera. Eruptions readers have come through with even more information on the swarm. Over 250 earthquakes have occurred in the park over the last few days, most…

Busy busy today with the first day of spring semester classes, but … Yellowstone is having a nice little earthquake swarm, eh? Likely it is nothing beyond fluid flow as the earthquake are shallow, but hey, it is still fun to see.

Turriabla mini-update for 1/11/2010

The streaming crater of Turrialba in an image taken in mid January 2010. I have a moment to spare here at WMU, so I thought I would pass some of this confusing news along concerning Turrialba. Some of the latest reports refer to a “crack” in the crater of the volcano … specifically: Geologists and…

The mysterious non-eruption of Karkar

Last week, I reported that Karkar in Papua New Guinea had erupted. This was based on reports from Volcano Live and from the Darwin VAAC that said the volcano had produced at least 1, maybe 2, ~13 km / 45,000 foot ash columns. That is not a trivial ash column – you would think a…

Here is Part 2 of the Q&A with Dr. Boris Behncke. You can also check out Part 1. Undated image of Stromboli in eruption. (Shirakawa Akira) 1. Would a large scale eruption (VEI 5 or greater) of Mt. Etna like the ones occurred in 122 BC and 1500 BC (disputed) be possible again in the…