Tag

Volcanic Monitoring

All articles tagged with #volcanic monitoring

earth-science1 hour ago•13 min saved

Seismic Survey Maps a 2.4-Mile-Deep Rock Cap Beneath Yellowstone's Caldera

A team deployed 650 geophones and a 53,000‑pound vibroseis truck at 110 roadside stops to image Yellowstone’s crust, revealing a sharp, roughly 100‑meter‑thick boundary about 3.8 kilometers (2.4 miles) below the caldera that marks the top of the magma reservoir. The upper portion is about 86% solid rock with 14% pore space of melt and volatiles, suggesting the system is not an open magma tank and helping explain its long quiescence. This high‑definition boundary improves hazard modeling and ongoing monitoring, without indicating an imminent eruption.

via Space Daily|

#earth-science #geophysics #magma-reservoir

science1 year ago•4 min saved

Alaska's 8,200-Foot Volcano Unveils Secrets of Stealth Eruptions

Mount Veniaminof in Alaska exemplifies a new category of silent, stealth volcanoes that erupt without warning, challenging traditional monitoring methods. Recent research reveals that slow magma supply, small magma chambers, thermal adaptation of surrounding rocks, and specific chamber geometries enable these eruptions to occur undetected. Advanced technologies like tiltmeters, fiber optics, infrasound sensors, and AI are crucial for improving detection and hazard assessment, which has significant implications for global safety and emergency preparedness.

via evidencenetwork.ca|

#alaska #geological-research #science

science1 year ago•4 min saved

Ancient Volcano Awakens, Geologists Warn of Possible Eruption

Scientists have detected signs of activity beneath Bolivia's dormant Uturuncu volcano, which has been inactive for over 250,000 years. Using advanced seismic imaging, they found unusual underground formations indicating potential internal fluid or gas movement, raising concerns about a possible eruption. While no immediate danger is confirmed, ongoing monitoring is crucial, and this research could improve global volcanic hazard prediction for long-dormant volcanoes. The study highlights international collaboration and advances in volcano monitoring technology, offering insights into 'zombie' volcanoes that may awaken unexpectedly.

via Jason Deegan|

#eruption #science #seismic-tomography