A volcano in Tanzania with magma that erupts like a garden hose has been steadily sinking into the ground for the past 10 years, a new study shows, and the cause could be a deflating reservoir directly beneath one of the volcano's two craters.
The new research reveals that the ground around the summit of Ol Doinyo Lengai volcano, which sits along an active rift zone in East Africa, subsided at a rate of 1.4 inches (3.6 centimeters) per year between 2013 and 2023. This means the 9,718-foot-tall (2,962 meters) volcano shrank by about 1.2 feet (36 cm) in the timeframe of the study, which was published June 8 in the journal Geophysical Research Letters.
