seismicity

Eruptions

Category archives for seismicity

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…

Tungurahua erupting in an undated AP photo (although I think it is the current 2010 activity.) It hasn’t really made it to much of the English-speaking news, but the current eruptive activity at Tungurahua appears to be on the up-tick. Hugo Yepes of the Geophysical Institute of Ecuador suggests that a larger eruption is not…

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…

Two quick notes: A Costa Rican farmer evacuating in early January 2010 after renewed activity of Volcan Turrialba. Well, it appears that after a quiet night on Friday, the current Yellowstone swarm picked up where it left off. We’re now up to 1,200 earthquakes since January 17th, with a pair over M3 today. Of course,…

Outcrops of Obsidian Butte, California, near the Salton Sea. A brief update on the two earthquake swarms making news right now: Yellowstone The earthquake swarm at Yellowstone is still rumbling along, reaching over 1,000 earthquakes measured over the last week. However, the swarm has begun to die down overnight – with no earthquakes between 10:41…

Quick news updates for a Wednesday… The island (and volcano) of Gran Canaria in the Atlantic Ocean. It last erupted in ~20 B.C. The earthquakes keep coming at Yellowstone – up to a M3.5 in the last 24 hours. Time has already put up an article wondering about whether people need worry about the swarm…

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.

Haitian Earthquake Relief

Sometimes it is easy to feel overwhelmed by a disaster like the earthquake in Haiti – I mean, how much can someone sitting in their office thousands of miles away do? It isn’t really feasible for most people to pull up stakes and go to give first-hand assistance during the recovery – but you feel…