@article{fdi:010094651, title = {{F}ault source models show slip rates measured across the width of the entire fault zone best represent the observed seismicity of the {P}allatanga- {P}una {F}ault, {E}cuador}, author = {{H}arrichhausen, {N}. and {A}udin, {L}aurence and {B}aize, {S}. and {J}ohnson, {K}. {L}. and {B}eauval, {C}{\'e}line and {J}arrin, {P}. and {M}arconato, {L}. and {R}olandone, {F}. and {J}omard, {H}. and {N}ocquet, {J}ean-{M}athieu and {A}lvarado, {A}. and {M}othes, {P}. {A}.}, editor = {}, language = {{ENG}}, abstract = {{W}e explore how variation of slip rates in fault source models affect computed earthquake rates of the {P}allatanga-{P}una fault system in {E}cuador. {D}etermining which slip rates best represent fault -zone seismicity is vital for use in probabilistic seismic hazard assessment ({PSHA}). {H}owever, given the variable spatial and temporal scales slip rates are measured over, significantly different rates can be observed along the same fault. {T}he {P}allatanga- {P}una fault in southern {E}cuador exemplifies a fault where different slip rates have been measured using methods spanning different spatial and temporal scales, and in which historical data and paleoseismic studies provide a record of large earthquakes over a relatively long time span. {W}e use fault source models to calculate earthquake rates using different slip rates and geometries for the {P}allatanga-{P}una fault, and compare the computed magnitude-frequency distributions ({MFD}s) to earthquake catalog {MFD}s from the fault zone. {W}e show that slip rates measured across the entire width of the fault zone, either based on geodesy or long-term geomorphic offsets, produce computed {MFD}s that compare more favorably with the catalog data. {M}oreover, we show that the computed {MFD}s fit the earthquake catalog data best when they follow a hybrid -characteristic {MFD} shape. {T}hese results support hypotheses that slip rates derived from a single fault strand of a fault system do not represent seismicity produced by the entire fault zone.}, keywords = {{EQUATEUR}}, booktitle = {}, journal = {{S}eismological {R}esearch {L}etters}, volume = {95}, numero = {1}, pages = {95--112}, ISSN = {0895-0695}, year = {2024}, DOI = {10.1785/0220230217}, URL = {https://www.documentation.ird.fr/hor/fdi:010094651}, }