The National Observatory of Athens (NOA) produces the NOA earthquake catalog since 1964. For its 50 year anniversary, we describe the evolution of the Greek seismic network by examining its performance in terms of completeness magnitude Mc.

Over its 50 years of existence, the earthquake catalog of Greece has improved on the basis of several network upgrades. The mid‐1960s marked the start of the modern Greek seismic network coordinated by the NOA. Since then, the earthquake catalog of NOA has been published with no interruption. Three main upgrades of the network are notable. (1) The passage from analog‐to‐digital...

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