A comprehensive tsunami catalog for a region would include both small and large tsunamis during a given time period. However, instruments that record small tsunamis (e.g. coastal tide gauges and deep ocean bottom pressure recorders) are relatively recent technological developments. In regions such as the Southwest Pacific and the Caribbean Sea, both written and instrumental records are sparse in the early 20th century and significantly scarcer further back in time. NOAA’s National Centers for Environmental Information (NCEI) and collocated World Data Service for Geophysics (WDS) provides long-term archive, data management, and access to national and global tsunami data. The Global Historical Tsunami Database includes information on the tsunami source, maximum wave heights, and effects such as deaths and damage. Examination of the NCEI/WDS Global Historical Tsunami Database can help reveal the level of completeness of historical records of tsunamis in different regions. This study takes the preliminary steps to statistically determine the quality of a regional historical tsunami catalog based on the function of time, location and observed runup height in the global database. The goal is to better understand the occurrence of all known earthquake-generated tsunamis to help characterize future tsunami hazards.