Getting your player ready...
Seismic activity in Yellowstone National Park “has markedly decreased” in the past two days, the Yellowstone Volcano Observatory said Tuesday.
However, observatory officials said, swarms of the size experienced beginning Dec. 26 “usually last for tens of days to many weeks.” The tremors are the largest series of back-to- back quakes to hit the area in years, according to scientists.
Three hundred of the estimated 500 quakes have been reviewed by seismologists. Of those, 86 had a magnitude of 2.0 or greater and 16 a magnitude of 3.0 or greater.
Most of the earthquakes have been from 1.8 to 6 miles underground. Scientists say that most of the quakes have been under Yellowstone Lake and have migrated northward.
