Is the goal to predict an earthquake occurrence, predict ground motion due to an earthquake, or predict a disaster? Considering all of these, what is it that seismologists can and cannot do when it comes to predicting earthquakes? The most spectacular of these concerns the widespread observation of so-called slow earthquakes. Slow earthquakes are slipping episodes at depth with deformation velocities that are in between plate tectonic motion and regular earthquake slip. The largest known slow earthquakes have magnitude of more than 7.5 when measured as regular earthquakes, and there is increasing evidence that, just as for regular earthquakes, slow earthquakes occur on a wide range of magnitudes.

Source: Daily News Egypt September 12, 2023 14:58 UTC