Ryosuke Ando, The University of Tokyo
Scientists have created a detailed flaw model that can help avoid new disasters worldwide.
NOTO, Japan, New Year’s Peninsula, 2024. A 7.5 earthquake on the Richter scale shook the region, creating a ground elevation of up to 5 meters in some places, and causing various damage.
Since then, geologists have studied the phenomenon to try to understand for sure what happened. Scientists then used newly developed simulations to create a detailed model of the failure. These investigations allow not only to understand this earthquake, but to support the creation of more accurate earthquake scenarios and contribute to the reduction of the risk of disasters in the future.
“During the earthquake of the NOTO peninsula, we observed a devastating elevation in some areas compared to others. In this study, we propose to understand the mechanism that controls the magnitude and spatial and temporal variation of failure sliding And the elevation of the resulting soil surface, ”said the main author, Ryosuke Ando, to.
O, published in April in Earth, Planets and Spacedetected that existed 3 MAIN FAILURE involved in the earthquake. The vertical displacement focused near the strokes of the failure, where the fault deviates locally from its overall horizontal orientation. This points out that failure geometry is fundamental to the way the earthquake affects the terrain.
“Our simulation with a supercomputer allowed the analysis of the three -dimensional geometry of the failure, which has an irregular shape. FAILURE GEOMETRY It controlled the global process through the relative guidelines of the failure in relation to the compression force that acts on the tectonic plate in this region, ”said Ando.
“By demonstrating the potential of simulations with detailed models of failure geometries, we show how characteristics of the failure sliding pattern can be restricted before of the occurrence of great earthquakes. We hope this discovery light to the creation of a method to evaluate the characteristics of the risks caused by large future earthquakes, ”he concluded.
