http://www.newsweek.com/yellowstone-steamboat-geyser-record-eruptions-volcano-observatory-national-1289951

Yellowstone’s Steamboat geyser—the tallest active geyser in the world—had a record-breaking year in 2018. It experienced more water eruptions over the calendar year than any other since records began.

A statement from the Yellowstone Volcano Observatory (YVO), which is part of the USGS Volcano Hazards Program, said that throughout 2018, the Steamboat geyser produced 32 eruptions. This, it said, breaks the record of 29, set in 1964.