ALBERT

Description: 2023 marks thirty years since the start of GEOFON operations with the first three stations in Papua New Guinea (Port Moresby, PMG), the Czech Republic (Moravsky Beroun, MORC), in Ireland (Dublin, DSB). The GEOFON program started shortly after creation of the GFZ German Research Centre for the Geosciences in 1992 with the aim to promote global seismic monitoring, standardisation and data exchange. The program has evolved over the three decades in synergy with the seismological community through three important milestones: since late 1990s the development and community adoption of the SeedLink protocol enabling global real-time data exchange; in early 2000s, development of the Arclink protocol as key development to interconnect the EIDA federated data archives, only recently superseded by the use of FDSN web services at global scale; 2008 as the first public release of SeisComP, one of the most widely used seismological packages in seismology, a development triggered after the 2004 Aceh-Andaman earthquake and tsunami within the GITEWS project (German Indian Ocean Tsunami Early Warning System). Although GEOFON‘s heritage goes back to the 1990s and further down to 1889 building on the initial findings from Ernst von Rebeur-Paschwitz, the program is capable of leveraging third party funded challenging projects to keep modernising with the community. In this presentation we outline the most important developments of GEOFON through a journey in time over three decades, building links between current activities and vision still influenced by the initial aims which have shaped the current GEOFON mission.

Description: SeisComP is nowadays the most widely distributed software package for seismological real-time data acquisition, processing and analysis. Initially developed by GFZ German Research Centre for Geosciences, focusing on data acquisition and exchange as well as basic automatic earthquake monitoring, it has since been enhanced with interactive analysis and fast magnitude calculation for tsunamigenic earthquake warning. Over the years, the SeisComP ecosystem has been extended with open and closed source modules that support additional application domains such as local and induced seismic monitoring, moment tensor inversions, earthquake early warning, seismic and infrasound array processing, structural health monitoring, earthquake engineering analysis, earthquake information dissemination as well as tsunami simulation and decision support. The wide use of SeisComP in over 500 earthquake and tsunami warning services, research institutes, universities and industrial enterprises all over the world has simplified and unified the exchange of seismic data, station meta data and earthquake parameters. SeisComP adopted and formed global standards such as SeedLink, MSeed, QuakeML, FDSN stationXML and FDSN web services. The functionality of the SeisComP ecosystem is growing and under active development and maintenance. We give a perspective on the evolution of SeisComP- past, present and future.