New information about landslides that occur on the seafloor off New Zealand’s east coast will help scientists better understand why and where they happen, and the types of threats they pose.
For the first time the Whakatipu lake floor will be mapped to build a picture of the potential for local tsunami hazards in the future.
When I asked Caltech geologist Brian Wernicke, a giant in the field of global geophysics, if it was possible that Faulds was paying too much attention to the Walker Lane, he replied, quickly and without irony: “Well, it's the most interesting place in the world.” In terms of understanding how continents deform and how seismic hazards relate to plate tectonics, he added, “it's an unparalleled natural laboratory.”.
“If you have good enough data and good enough sensing technologies, such as the seismometer network in California or the hurricane-hardened WeatherFlow anemometer stations on the East Coast, you can get that data and very quickly work out whether someone should be getting paid,” says Samuel Jay Gibson, of the Capital and Resilience Solutions Group at the catastrophe risk modeling firm RMS.
Today, machine learning algorithms can detect over 100 types of cancerous tumors more reliably than a trained human eye. In Guatemala City, images and algorithms were used to locate “soft-story” buildings – buildings at least two stories high that have a structurally weak first floor.
“This study unequivocally demonstrates that earthquake-triggered canyon flushing is the primary process that carves out submarine canyons and delivers coastal sediment to the deep ocean,” says NIWA marine geologist Dr Joshu Mountjoy.