How Often Does Old Faithful Erupt: A Geothermal Wonders Schedule

Is Old Faithful still known for its predictable eruptions every hour? Old Faithful, a famous geyser in Yellowstone National Park, has been renowned for its regular eruptions since its discovery. It erupts on a consistent schedule, typically every 60 to 110 minutes, with each eruption lasting for approximately 1.5 to 5 minutes. The geyser’s spectacular display can reach a maximum height, varying between 90 to 184 feet, creating a mesmerizing natural spectacle for visitors to the park.

Is Old Faithful’s eruption schedule consistent, occurring every 90 minutes? The timing of Old Faithful’s eruptions actually varies, with intervals ranging from 35 to 120 minutes, but the typical interval averages around 92 minutes. In fact, approximately 90 percent of the time, predictions for its eruptions are accurate within a 10-minute margin, meaning the geyser can erupt anywhere from 82 to 102 minutes after the previous eruption. This fluctuation adds to the mystique and unpredictability of one of Yellowstone National Park’s most famous natural wonders.