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Hundreds Of Earthquakes Have Yellowstone Trembling

Probably the only thing we remember from our tours of Yellowstone a couple years ago are guides telling us about the supervolcano that formed the caldera that covers a large chunk of the national park. You can't have geysers and bubbling mudpots without lots of geothermal activity underground, and so Yellowstone is used to the occasional quake. But a recent batch of hundreds of mini-earthquakes, has scientists scratching their heads.

Though even the strongest of the tremors, at magnitude 3.8, is just strong enough to be easily noticed without seismic equipment, the fact that more than 250 quakes have occurred in the past few days has geologists on high alert, one University of Utah professor tells the AP:

This is an active volcanic and tectonic area, and these are the kinds of things we have to pay attention to. We might be seeing something precursory.

Could it develop into a bigger fault or something related to hydrothermal activity? We don't know. That's what we're there to do, to monitor it for public safety.

While it's good to know someone's watching out for park visitors, it's not exactly clear what precautions could be taken if a massive earthquake were to suddenly hit. In 1959, a huge quake triggered a landslide that killed 28. The good news is that these quake swarms happen pretty often, so it could just be a little something to add some edginess to your national park visit.

Related Stories:
· Scientists Eye Unusual Swarm of Quakes [AP, via Google]
· Recent Quakes in Yellowstone National Park [University of Utah]
· Earthquakes coverage [Jaunted]

[Photo: trialsanderrors]