Our Kickoff Meeting on December 9, 2018, in Washington, DC was our community’s first opportunity to discuss the goals and of our research collaboration network (RCN) in person. The meeting was also broadcast live via webinar.

We heard brief presentations from members of our steering committee, several US agencies, and international partners represented by attendees from Japan and Europe. Along with representatives of community centers (CIG, CSDMS, SCEC) and our sister RCNs under the SZ4D framework, we discussed the broad vision of a potential Modeling Collaboratory for Subduction as suggested within the SZ4D report. The MCS RCN will lead a series of workshops and webinars focusing on understanding the underlying physical processes and modeling challenges associated with subduction zone hazards. This report summarizes the discussions and provides links to resources.