Earthquake 5.7 pitcher in the Cypriot Gulf: Geodynamics’ announcement of approach and tsunami

A detailed communication on the powerful 5.7 Richter east of the Stroads in the Cypriot Gulf issued the Geodynamic Institute of the National Observatory of Athens. As he says about the earthquake: “On 29 March 2024 at 09:12:48. 74 we had east of the Sparrows very strong seismic vibration with a magnitude of 5.7 on the Richter scale. Before this earthquake at 09:11:54.78, i.e. 53.96 seconds ago, attention was made to the same area. The automatic system immediately and correctly identified the existence of two earthquakes and even calculated the epicenters in the right position. However, while the size of the second powerful earthquake was correctly calculated, the approach appeared with the wrong size in the automatic solution. The reason was that for all automatic systems, the magnitude calculation is typically based on a 120-second (window) recording interval for each earthquake. This is done so that the measurement includes a sufficient number of stations in the calculations, even for the area of the Greek arc and the border areas of Greece. In this case, the automatic system to calculate the size of the landing used a window in which the large earthquake had already entered and thus was affected. NCA’s Geodynamic Institute shift directly identified the existence of error in size, however, it had to immediately send the urgent warning of a possible tsunami, since the magnitude of the earthquake was M 5.7 (over M 5.5). The tsunami warning was completed in a minimum time and specifically in just 6 minutes (9:18). Immediately after, at 9:21:28 (3 minutes later) the detailed solution of the strong earthquake had been completed and at 09:23:17 (1 minute and 49 seconds later) the elements of the landing were also corrected.” In conclusion, he stressed: “NEA’s Geodynamic Institute reacted calmly and responsibly, even in this very difficult case of an earthquake (an earthquake with a difference of seconds and a need for tsunami warning) and announced the correct solutions in the minimum possible time”.