Old Faithful is Not As Faithful As It Once Was
Mark Ralston/AFP/Getty Images, Tiny Fox Lab

Old Faithful” first earned its name in 1870, when a group of explorers noted that it erupted roughly once every 60 minutes. After decades of earthquakes, it now erupts about every 90 minutes.Tiny Fox Lab Facts

Preview photo credit: Mark Ralston/AFP/Getty Images
Source: history.com/news/10-things…