TY - RPRT TI - Hydra—The National Earthquake Information Center’s 24/7 seismic monitoring, analysis, catalog production, quality analysis, and special studies tool suite AU - John M. Patton AU - Michelle R. Guy AU - Harley M. Benz AU - Raymond P. Buland AU - Brian K. Erickson AU - David S. Kragness PY - 2016 DO - 10.3133/ofr20161128 UR - https://pubs.usgs.gov/publication/ofr20161128 ID - ofr20161128 ER -