Earthquake engineering brings together researchers from seismology, structural, mechanical, and geotechnical engineering whose research results in saving lives and protecting property during earthquakes and tsunamis. Researchers' expectations regarding data management, data archiving, and preservation, are as different as their methodological or experimental approaches in earthquake engineering research. The diversity of the earthquake engineering community poses exciting challenges for archiving and data preservation in a domain repository, such as the Project Warehouse of the Network for Earthquake Engineering Simulations (NEES). The presented paper offers a review of the current infrastructure of the NEES data repository and further describes workflows that are pertinent to data archiving, to maintaining high quality of stored data, and to carrying out curation.