Castle Geyser in winter

Is Yellowstone Caldera Stabilizing? Recent Seismic Evidence Says Yes

A report from the Yellowstone Volcano Observatory noted the slowdown in the rise of the caldera, as measured by GPS data collected between mid-2004 and mid-2009; in fact, the slowdown is total and could indicate a stop in the rise, according to researchers. This fits with predictions made back in 2007 about how the supervolcano would act: researchers had predicted the caldera would rise for a relatively short period of tume but then the uplift would end, leading to a stable period in supervolcano activity. The uplift has indeed apparently ended.

Add to that a relatively quiet month in seismic activity, and you have the makings of stability. The December readings indicated a normal month, with only 70 earthquakes recorded in the Yellowstone National Park region. No earthquake swarms were recorded in December.

Speculation on a Yellowstone supervolcano eruption always makes for good TV rating and Website page views. But the best evidence indicates nothing spectacular is on the horizon.

Photo courtesy of the National Park Service.

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