"Ongoing Volcanic Activity and Seismic Developments Across the United States"

In the United States, volcanic activity continues to be closely monitored at Kilauea in Hawaii. According to the Hawaiian Volcano Observatory, episode 20 of the ongoing Halemaʻumaʻu eruption ended on May 10, 2025, and the volcano is currently in a pause phase. Scientists predict that if inflation rates remain constant, episode 21 is likely to begin within the next day or two, potentially as early as Sunday or Monday. All eruptive activity remains confined within Hawaii Volcanoes National Park, with no significant activity noted along Kilauea's East Rift Zone or Southwest Rift Zone. Meanwhile, at Yellowstone, activity remains at background levels with 46 earthquakes recorded in April, the largest measuring just 1.8 magnitude. Deformation measurements indicate a small amount of caldera subsidence since early October. Steamboat Geyser erupted for the second time this year on April 14 and has been quiet since, though minor activity is expected to resume in early May. Field season has begun in Yellowstone National Park, with geologists currently collecting geophysical and geochemical data from the Mud Volcano area and deploying semi-permanent GPS stations to track surface deformation. In other developments, researchers investigating the Wasatch Fault in Utah have made important discoveries about its vulnerability to earthquakes. Using rock samples collected from the fault, geoscientists combined experiments and analysis with examinations of fault rock textures to better understand earthquake risks in the region. A new study from the Pacific Northwest indicates increasing flood risks due to a combination of potential powerful earthquakes and rising sea levels, which could significantly impact thousands of residents and properties in northern California and surrounding areas. In Italy, scientists have made a breakthrough in understanding unrest at Campi Flegrei volcanic area. New research reveals that elevation changes and earthquakes there are caused by rising pressure in a geothermal reservoir rather than magma or gases, as previously thought. The US Geological Survey continues its work on resource assessment, recently releasing evaluations of undiscovered oil and gas resources in several regions including the Gulf Coast, Texas Maverick Basin, Wyoming, southern Montana, and the Los Angeles Basin, providing valuable data for future energy planning. This content was created in partnership and with the help of Artificial Intelligence AI.