The first earthquake in Argosaronictook place at 21.43 on Good Thursday night with a focus of 11 kilometers northeast of Hydra and was 2.8 Richter.
A few minutes later, and at 21.46, there was a second earthquake in the Argosaronic Gulf, very close to the first, 10 kilometers from Poros.
The size of the second earthquake was 3.2 Richter according to the Geodynamic Institute.
According to the Euro -Mediterranean Seismological Center, there is evidence that the earthquake was also felt in areas of Attica.
See in the map below, in which areas:
However, there are no reports of damage from the two earthquakes …