The SeismicPortal FDSN-event service provides access to the EMSC's catalogue of over 1.5M event parameters using a REST api that closely follows the FDSN-event specification version 1.2 [https://doi.org/10.7914/ves9-xk66]. This standardised REST api allows selections of events to be retrieved from the catalogue (it is not expected that the entire dataset be downloaded). The catalogue begins in 1998 and is continuously updated with coverage increasing gradually over the years. The results are returned as geojson, QuakeML or csv files requested and are licensed under the CC-BY 4.0 license [https://creativecommons.org/licenses/by/4.0/deed.fr].
Queries to the catalogue(s) yield datasets of Earthquake parameters encoded in json, xml or csv formats.