Morning of December 8, 2021

The establishment of seismological data archiving and distribution centers such as Resif has revolutionized seismology as an observation-based science. A huge mass of records of the Earth’s murmurings is now freely and easily accessible, opening up new research opportunities in all areas of seismology. Even if they are aware of the importance of data centers in their work, younger researchers may not know that in France and Europe, this possibility of accessing all the data is recent – less than 10 years – and that it owes much to the teams of engineers who built the data centers, and first and foremost to Catherine Péquegnat for that of Résif.

Catherine Pequegnat retired in july 2020. The half-day session that ISTerre will devote to seismological databases in honor of Catherine will trace the history of seismological data centers, from Iris-DC in the United States to the distributed infrastructure Eida of European centers, and Résif-DC which is the French component. The successes, but also the difficulties of collaborations between researchers and engineers, and between engineers of different structures and different professions will also be discussed. Finally, a perspective will be opened towards the integration of new types of even more massive data, whether they come from wide-N networks (networks of “nodes”) or from optical fiber systems.

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