Tag

Ground Deformation

All articles tagged with #ground deformation

science1 year ago

"Kīlauea Intrusion: Textbook Example of Dike Propagation"

A recent magma intrusion into Kīlauea's flank prompted the USGS Hawaiian Volcano Observatory to raise the volcano's alert level, with hundreds of earthquakes and high rates of deformation recorded during the event. An interferogram from the Italian Space Agency's satellite confirmed that the intrusion was larger than previous ones and displayed a classic dike-opening pattern. Kīlauea is currently not erupting, but disbursement seismicity and mild inflationary trends continue, while Mauna Loa shows no signs of activity.

climate-change2 years ago

The Subterranean Threat: Climate Change's Silent Hazard in Major Cities

A new study from Northwestern University suggests that climate change is causing the ground beneath cities to deform and potentially lead to infrastructure damage. The study, which quantifies the effects of underground climate change on civil infrastructure, found that heat is causing the ground to contract and expand, leading to cracks in buildings and foundations. Urban areas are particularly vulnerable to this phenomenon, known as "subsurface heat islands," which can have environmental, public health, and transportation implications. The study highlights the need for infrastructure designs that can withstand temperature variations caused by climate change.