#Geyser

With the arrival of Memorial Day and the unofficial start of the summer travel season, we take a look at the most common questions that visitors to Yellowstone’s thermal basins ask the park’s interpretive rangers.

Hydrothermal explosions are notoriously hard to predict. But a geological thermometer based on hot spring chemistry might help.

In a recent study, scientists used several novel methods to measure the volume of water erupted from the iconic Old Faithful Geyser. The average volume of water from 45 eruptions was 27.9 cubic meters (7,370 gallons) but varied from 12.2 to 44.3 cubic…

In 2024, Yellowstone experienced a year of contrasts. Hydrothermal explosions dominated the headlines, but in terms of seismicity and ground deformation it was a quiet year.