It’s cone is about 12-feet tall. The latest Giantess eruption seems to be a mixed eruption with series of outbursts happening about every 4o-60 minutes, still sputtering Friday morning, more than 40 hours since it started. With 500 geysers and 1,300 thermal features under his purview, Heasler is often notified by social media of activities like Giant’s eruption, or inquiries about such posts. Over the last two years, Giant Geyser in the Upper Geyser Basin has been erupting more frequently. ... who has seen 15 Giant eruptions in the last two years. In comparison, Old Faithful’s eruptions top … Updated: October 14, 2020. A massive geyser, which was known for how often it erupted each year, went mysteriously silent for six years. The National Park Service (NPS) says that Giantess Geyser has been silent in the Wyoming section of the park for the last six and a half years. Its last eruption was in January 2010. located in the Upper Geyser Basin in Yellowstone National Park. Subscribe to Breaking News. Giant Geyser is a cone-type geyser in the Upper Geyser Basin of Yellowstone northwest of Old Faithful Geyser. Giant last erupted in 2010 and was active between 2005 and 2008, according to the Geyser Observation and Study Association’s website. Giant Geyser was dormant for many years after the energy shift in 1955. The last aborted eruption was seen in 1998. Yellowstone's 'Giantess Geyser' roared back to life Tuesday, erupting for the first time in years! Giant last erupted in 2010 and was active between 2005 and 2008, according to the Geyser Observation and Study Association’s website. Old Faithful Area Tour The Hearty Soul Team. Giantess has been observed by gazers and instruments year-round since about 1920 except possibly during World War II. This spectacular geyser's eruptions last about an hour and can reach heights of 180 - 250 feet (55 - 76m). During eruptions small geysers nearby may also erupt. Giant Geyser's Steaming Cone. During 1997, its eruptions occurred every 3 - 10 days. Since then, it has slowly become active again. Clips 41-42 of this video compilation (= time stamp 11:05 to the end) show Feather Vent erupting during the 12:38 to 12:50 AM Giant Hot Period on 13 August 2018 - this led to a Giant Geyser eruption. Giant Geyser can erupt over 50 times a year (2007) or once a year (2010). However, on Tuesday the Giantess Geyser in Yellowstone National Park finally erupted again after being dormant for six years, shocking and amazing the lucky park-goers. 10 Aug 2018 @ 1844 With 500 geysers and 1,300 thermal features under his purview, Heasler is often notified by social media of activities like Giant’s eruption, or inquiries about such posts. An eruption can reach up to 250-feet in height, then dropping to about 100-feet for the hour-long duration.