Acknowledgments
We thank Göran Ekström, Paul Grimwood, Masha Liukis, Phil Maechling, Silvio Maraini, Gilles Mazet-Roux, Adrian Wyss, and John Yu for their contributions to QuakeML.
QuakeML development at ETH Zurich is funded as part of the NERIES project (EC contract no. 026130). GFZ Potsdam acknowledges funding by the Bundesministerium für Bildung und Forschung (GITEWS project).