At the world’s largest caldera lake, geologists are seeking clues to future volcanic activity, not only at Lake Toba in Indonesia but also at other supervolcano sites around the world, including the one at Yellowstone National Park.
Under the Hood
Mount Hood last erupted more than 200 years ago, but at Crater Rock, not far from the summit, the signs of volcanic activity are unmistakable. Gas vents and hot springs emit sulfur fumes. Vapors rising from deep under the mountain carve snow caves, which can seem like sanctuaries for climbers but often hold deadly concentrations […]
The Earth Burps and Burns
When the Earth burps, WeiLi Hong listens. Whether Earth’s gaseous emissions bubble up from “mud volcanoes” on the planet’s surface or seep out of fissures on the ocean floor, the Oregon State University Ph.D. student has his monitoring gear to the ground. And sometimes, he’s actually in the ground. “I fell in twice,” Hong admits, […]
Undersea Eruptions Led to Massive Landslide
An erupting undersea volcano near Guam in the western Pacific continues to reshape the seafloor. In March 2010, scientists from the National Oceanic and Atmospheric Administration and OSU led another in a series of expeditions to NW Rota-1 in the Mariana Arc. Eruptions have been practically continuous since first discovered in 2003, says Bill Chadwick, […]