The earthquake in the Kyparissia Gulf that occurred this morning, triggered the conflict between the seismologists of Akis Tselentis and Gerasimos Papadopoulos.
The earthquake occurred at 09:12 on Friday morning in the marine area near Strofades in the Kyparissia Gulf off Ilia.
A minute earlier, there was an earthquake of 4.3 Richter, with the initial assessment by the Geodynamic Institute speaking of 5.6 Richter.
The Geodynamic Institute issued a statement with clarifications. An announcement that caused the strong reaction of Gerasimos Papadopoulos.
“The thriller with the alleged double earthquake in the maritime area of the Kyparissia gulf has ended. Initially, the National Observatory announced 2 earthquakes of magnitudes 5.6 and 5.7. Finally, after half an hour he announced 4.5 and 5.7. Such errors have happened in the past. They must be eliminated. They create confusion and make evaluation difficult,” noted Gerasimos Papadopoulos to conclude: “As for the bottom line, at the moment we are not sure if the 5.7 was the main earthquake. The region has experienced major earthquakes in the past,” wrote G. Papadopoulos.
The Celentis reaction
The director of the Geodynamic Institute, Akis Tselentis, hastened to respond to the post of G. Papadopoulos.
“It’s no longer fair with this retired physicist and former employee of Geodynamics who did not respect the place where he ate bread and constantly appears in the media and accuses us of both scientific inadequacy and empathy,” wrote A. Tselentis.
“The man who has made predictions for all of Greece is speaking and if an event happens he will come out and tell us that he predicted it. A year ago it took me 5 months to calm down Thebes who was talking about 7 Richter. He doesn’t even respect the tourist season by throwing tourism into the air”, he commented.
Geodynamic’s announcement about the earthquake and tsunami
The Geodynamic Institute of the National Observatory of Athens issued a detailed announcement about the strong 5.7 Richter earthquake east of Strofadis in the Cyprisian Gulf.
As he says about the earthquake:
“On March 29, 2024 at 09:12:48.74, we had a very strong earthquake with a magnitude of 5.7 on the Richter scale east of Strofadis. Before this earthquake and time 09:11:54.78, i.e. 53.96 seconds ago, an aftershock occurred in the same area. The automatic system immediately and correctly detected the existence of two earthquakes and even calculated the epicenters in the correct location. However, while the magnitude of the second strong earthquake was correctly calculated, the aftershock appeared with the wrong magnitude in the automatic solution.
The reason was that for all automatic systems, the magnitude calculation is typically based on a recording interval (window) of 120 seconds 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 for calculating the magnitude of the aftershock used a window in which the large earthquake had already entered and was thus affected.
The EAA Geodynamic Institute shift immediately identified the existence of the error in magnitude, however, it had to immediately send the emergency warning of a possible tsunami, since the magnitude of the earthquake was M 5.7 (above M 5.5). The tsunami warning was completed in a very short time, namely in just 6 minutes (9:18).
Immediately after, at 9:21:28 (3 minutes later) the detailed resolution of the strong earthquake was completed and at 09:23:17 (1 minute and 49 seconds later) the aftershock data was also corrected.” In conclusion, he underlines: “The Geodynamic Institute of the EAA reacted calmly and responsibly, even in this very difficult case of an earthquake (occurrence with a difference of seconds and the need for a tsunami warning) and announced the correct solutions in the shortest possible time.”
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