US Quake Sparks Fears of Imminent Major Volcanic Eruption

Earthquake Shakes Alaska Near Mount Spurr Volcano, Eruption Fears Grow
[Image: Mount Spurr releasing ash during its 1992 eruption]

A 3.7-magnitude earthquake struck near Alaska’s Mount Spurr, an 11,000-foot volcano showing signs of imminent eruption. The quake, detected 30 miles northwest of the volcano, adds to heightened seismic activity observed since April 2024. Scientists warn magma movement beneath the surface may trigger an explosive eruption within “weeks to months.”

Mount Spurr, located 80 miles from Anchorage (population 300,000), has seen weekly earthquakes surge from 30 to 125 since October. The recent 3.7-magnitude quake occurred 65 miles underground, potentially linked to magma rising from the mantle. The Alaska Volcano Observatory (AVO) confirms the volcano is “moving closer to an eruption,” prompting Anchorage officials to elevate emergency plans to Level 2.

[Image: Map showing earthquake locations near Mount Spurr]

Eruption Risks and Preparedness
A likely eruption at Crater Peak—a vent active in 1992—could spew ash 50,000 feet high, disrupting air travel and blanketing Anchorage. While destructive mudflows are expected, nearby communities face minimal direct threat. AVO scientist Matt Haney warns the explosion could mimic the 1992 event, which shut down Anchorage’s airport for 20 hours and left the city coated in ash.

Lessons from 1992
Mount Spurr’s last eruption cost Anchorage $2 million in damages and cleanup. Ash inhalation risks, especially for those with respiratory conditions, remain a concern. Though no direct fatalities occurred, one death linked to ash cleanup was reported.

[Image: Ash-covered Anchorage streets during the 1992 eruption]

As gas emissions and ground deformation continue, scientists monitor for volcanic tremors signaling eruption. Residents are urged to stay informed as authorities refine evacuation and safety protocols.

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