"Upside-Down Ocean Crust: Uncovering Strange Seismic Signals"

Mysterious seismic signals from a 2010 earthquake in Spain led scientists to discover an upside-down subducted slab of ocean crust in the Western Mediterranean. The seismic waves, which exhibited unusually long coda, indicated the presence of a low-velocity layer at the base of the subducting Alboran slab, suggesting the occurrence of the overturned slab. This finding, detailed in a study published in The Seismic Record, provides valuable insights into deep earthquakes and could significantly contribute to research in the Rif-Betic-Alboran region where Africa and Eurasia are converging.