Scientists have heightened their vigilance over three U.S. volcanoes—Alaska’s Great Sitkin and Mount Spurr, along with Hawaii’s Kilauea—as seismic activity increases and eruption threats grow. Great Sitkin now sits at ‘Watch’ status, the third level in a four-tier warning system, following small earthquakes and lava emissions from its summit crater. Mount Spurr, located 75 miles west of Anchorage, has seen a dramatic rise in seismic activity over the past ten months, with weekly earthquakes increasing from 30 to 125 since April 2024, indicating a 50-50 chance of eruption. Meanwhile, Kilauea erupted for the ninth time since December 2024 on February 11, sending lava 300 feet into the air within Hawaii Volcanoes National Park. While no residential areas have been directly impacted, officials remain cautious about potential ash clouds and volcanic glass hazards.

Growing Unrest: Scientists Detect Increased Seismic Activity

Scientists have been closely monitoring increased seismic activity beneath these multiple U.S. volcanoes, signaling a shift in their behavior. Earthquake swarms have intensified, with sensors detecting more frequent and stronger tremors near Great Sitkin, Mount Spurr, and Kilauea. These movements suggest magma is rising toward the surface, a key warning sign of possible eruptions. Researchers are using advanced monitoring tools to analyze ground deformation and gas emissions, both of which indicate growing unrest. As activity escalates, experts warn that these volcanoes could erupt with little notice, urging nearby communities to stay alert and prepared.

Rising Magma Levels: What This Means for Nearby Communities

Rising magma levels beneath these U.S. volcanoes pose serious risks to surrounding communities. As molten rock pushes upward, it increases pressure within the volcanic system, heightening the chances of an eruption. This movement can trigger stronger earthquakes, release toxic gases, and cause ground deformation, all of which threaten infrastructure and public safety. Residents living near active volcanoes may face evacuation orders if conditions worsen. Officials urge communities to stay informed, prepare emergency plans, and monitor real-time updates as volcanic activity continues to escalate.