A new study by the researchers at the National Oceanography Centre (NOC) reveals a new aspect of the correlation of the Canary Island landslides with tsunami waves, unlike previous estimates.
Deep marine sediment cores were used to estimate landslide activity over the last 1.5 million years. Up to now researchers have thought that the material of each landslide was discharged into the ocean all at once. According to the new study though, each landslide seems to have released material in stages. Mud between the layers of sand indicates that the stages occurred at different times, resulting to less devastating tsunamis. The authors, despite the lessened severity of the waves induced by landslides, revealed by the study, still consider tsunamis a threat. The current study was funded by the Natural Environment Research Council (NERC), through a NOC studentship.
Source: National Oceanography Centre
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