Since the start of February, Yellowstone National Park and its supervolcano have been hit with a wave of at least twenty earthquakes and a number of smaller tremors. Although the largest earthquake only registered a 2.9 on the Richter scale while all have struck about five miles below the Earth's surface, this so-called earthquake swarm is noteworthy, though likely not reason for alarm. "While it may seem worrisome, the current seismicity is relatively weak and actually represents an opportunity...
from Inhabitat - Green Design, Innovation, Architecture, Green Building https://inhabitat.com/wave-of-earthquakes-shake-yellowstones-supervolcano
via Inhabitat
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