YELLOWSTONE NATIONAL PARK, Wyo. — Yellowstone National Park geologists have reported the third eruption from the world’s largest active geyser in the past six weeks. The National Park Service says a park visitor reported seeing a rare eruption of Steamboat Geyser on Friday.
![Steamboat Geyser](https://cbsnews3.cbsistatic.com/hub/i/r/2018/03/18/c607e209-cacf-4432-8015-35f99c6826b9/resize/220xg8/81309b45fa13ad3b7defc7a3f21a03d3/ap-376576925848.jpg#)
Steamboat Geyser, in Yellowstone National Park’s Norris Geyser Basin in Wyoming, erupts on Wednesday, July 31, 2013.
Robb Long / AP
Park geologists compared the report with seismic activity and the discharge of water and concluded the eruption probably started at 6:30 a.m.
The geyser also erupted on March 15 and April 19.
All three eruptions were smaller than the last major eruption that occurred on Sept. 3, 2014.
© 2018 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.