Yellowstone eruption risk shifts northeast, warns USGS experts
Geologists from the USGS have warned about changes in the volcanic activity of Yellowstone, which may shift to the northeast, reports Newsweek.
The latest research conducted by scientists at the United States Geological Survey (USGS) suggests a potential shift in magma activity under the Yellowstone supervolcano towards the northeast.
New approach to magma study
The Yellowstone Caldera, one of the largest volcanic systems in the world, is driven by the so-called Yellowstone Hotspot. Over the past 2.1 million years, this complex has experienced three major caldera eruption episodes. USGS scientists, including volcanic seismologist Ninfa Bennington, utilised a novel electromagnetic technique to study the structure of the Earth's crust.
Analysis indicated that in the western part of the caldera, volcanic activity may be decreasing, and future eruptions are more likely in northeastern Yellowstone. Studies suggest there could be up to approximately 429 cubic kilometres of molten rock beneath the northeastern part of Yellowstone.
Potential threats
The research team identified seven areas under Yellowstone with higher magma content that may be interconnected. These magma bodies are located at depths ranging from about 4 to 46 kilometres beneath the surface. These findings could be significant for future research and monitoring of volcanic activity in the region.
Further research will be necessary to determine when the magma reservoir in the northeast might erupt. Previous research methods were limited by the properties of the Earth's crust, such as temperature, which made it challenging to precisely determine the location of the molten rock. The new approach could yield more accurate results.
These studies are crucial for understanding the dynamics of one of the most volcanically active regions in the world. The scientists' conclusions may aid in better preparation for potential future volcanic eruptions in Yellowstone.
