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Increased Earthquake Activity Under Volcano in Alaska Sparks Concern


Science

Increased earthquake activity under Mount Spurr, a volcano located near Anchorage, Alaska's largest city, has drawn the attention of geologists. Since the beginning of the year, approximately 1,500 small earthquakes have been recorded beneath the volcano, a significant rise compared to the usual 100 annually. This escalation prompted the Alaska Volcano Observatory to elevate its alert level from green to yellow in October. Despite the surge in activity and ground deformation seen in satellite data, scientists, including Observatory scientist David Fee, emphasize that these signs do not conclusively predict an imminent eruption. Mount Spurr last erupted in 1992, creating an ash cloud that affected flight schedules and drove residents to wear masks. A similar event had occurred in 1953, but no eruptions have occurred from the summit in over 5,000 years. If Mount Spurr erupts, it could pose significant disruptions to Anchorage and its busy airport, which is critical for commerce due to Alaska's geographical proximity to Asia, making it one of the world's leading cargo airports. Scientists are closely monitoring seismic data, satellite imagery, and visual observations for any indication of magma movement that might signal an impending eruption.