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Earthquake magnitudes may seem straightforward, but a lot goes into their calculation, and multiple methods can be used. These methods must account for many complications, like the impacts of local geology on the amplitude of shaking. In Yellowstone, a modern seismic network and experienced analysts make it possible to determine the magnitudes of even the smallest earthquakes.

Have you noticed there has been an increase in the number of earthquakes happening in Yellowstone National Park over the last week? This is because there is an active earthquake swarm occurring beneath Yellowstone Lake. Although it looks impressive, it pales in comparison to past sequences, including the 2008–2009 Yellowstone Lake swarm.