The SED provides different ways to access this data depending on your needs:
: For up-to-the-minute data beyond the "frozen" 2009 catalogue, you can use the SED Event Portal, which allows you to query historical and modern events via a web browser. Download ECOS pdf
: A detailed PDF explaining the methodology and catalogue format can be found on ResearchGate or directly via the SED Appendix L . The SED provides different ways to access this
: It covers Switzerland and surrounding regions (43–51°N and 3–13°E), merging data from 15 separate national and international catalogues. the 2002 or 2019/2020 periods)
: For year-specific analysis (e.g., the 2002 or 2019/2020 periods), the SED publishes annual summaries available on the ETH Zurich Research Collection .