『Kilauea Volcano Eruption Looms as Scientists Monitor Inflation and Precursory Signs』のカバーアート

Kilauea Volcano Eruption Looms as Scientists Monitor Inflation and Precursory Signs

Kilauea Volcano Eruption Looms as Scientists Monitor Inflation and Precursory Signs

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 Scientists are closely monitoring volcanic activity at Hawaii’s Kilauea volcano where the United States Geological Survey reports summit inflation continues and the likelihood for a new eruptive episode is growing. The latest signals include visible glow from the north and south vents, and gas pistoning cycles causing minor overflows from the crater, considered precursory signs ahead of full-scale lava fountaining. Models suggest that this eruptive sequence, known as episode thirty-three, could begin between September seventeenth and twentieth. The Uekahuna tiltmeter at the summit has recorded significant inflation since the previous eruption episode ended, indicating ongoing magma accumulation beneath the volcano. These observations come less than three weeks after episode thirty-two ended, which saw dramatic lava fountains up to five hundred feet high from the north vent according to the US Geological Survey. Activity at Kilauea remains at a “watch” alert level and aviation color code “orange.”

Turning to Alaska, the United States Geological Survey’s Alaska Volcano Observatory has issued updates for the Great Sitkin Volcano, where an eruption is still ongoing. The persistent activity at Great Sitkin has included lava effusion and low-level ash emissions, continuing to pose local aviation hazards and reflecting the highly dynamic volcanic landscape of the Aleutians.

Elsewhere in the United States, a new round of geologic hazard surveys is underway in the Northeast. The United States Geological Survey just launched low-level helicopter flights across Connecticut and Massachusetts to map bedrock geology and understand regional hazards, including the risks posed by the mineral pyrrhotite in local foundations. This study aims to aid infrastructure safety and inform building practices in pyrrhotite-risk regions.

Globally, anticipation is building within the geoscience community for the Sixth World Congress on Geology and Earth Science, scheduled for later this month in Berlin, Germany. The upcoming sessions will address a variety of emerging topics, including environmental geoscience, geohazards, geological risk assessment, and the use of artificial intelligence in mapping and hazard prediction. Presentations will highlight new methods for detecting fracture displacement in rocks, advances in remote sensing using uncrewed aircraft, and research linking mercury contamination in groundwater to oil and gas activities.

In the realm of discovery, new remote sensing work beneath Antarctica has revealed a previously unknown network of over three hundred massive submarine canyons sculpted by glaciers. Meanwhile, in the Canadian Yukon, geologists using satellite and drone technology have identified a dormant fault line, the Tintina fault, as a major earthquake risk after uncovering evidence of past seismic activity.

Overall, the past week’s news points to heightened volcanic monitoring in the United States, new efforts to assess geologic hazards affecting communities, and significant international research collaboration improving our understanding of both ancient and modern geologic processes.

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