Teraphan OrnthammarathPennung WarnitchaiChung Han ChanYu WangXuhua ShiPhuong Hong NguyenLe Minh NguyenSuwith KosuwanMyo ThantEarth Observatory of SingaporeVietnam Academy of Science and TechnologyNational Central University TaiwanMahidol UniversityAsian Institute of Technology ThailandNational Taiwan UniversityMyanmar Earthquake Committee2020-08-252020-08-252020-01-01Earthquake Spectra. (2020)875529302-s2.0-85088431136https://repository.li.mahidol.ac.th/handle/20.500.14594/57871© The Author(s) 2020. We present an evaluation of the 2018 Northern Southeast Asia Seismic Hazard Model (NSAHM18) based on a combination of smoothed seismicity, subduction zone, and fault models. The smoothed seismicity is used to model observed distributed seismicity from largely unknown sources in the current study area. In addition, due to a short instrumental earthquake catalog, slip rate and characteristic earthquake magnitudes are incorporated through the fault model. To achieve this objective, the compiled earthquake catalogs and updated active fault databases in this region were reexamined with consistent use of these input parameters. To take into account epistemic uncertainty, logic tree analysis has been implemented incorporating basic quantities such as ground-motion models (GMMs) for three different tectonic regions (shallow active, subduction interface, and subduction intraslab), maximum magnitude, and earthquake magnitude frequency relationships. The seismic hazard results are presented in peak ground acceleration maps at 475- and 2475-year return periods.Mahidol UniversityEarth and Planetary SciencesArticleSCOPUS10.1177/8755293020942528