@article{PAR00020516,
  title = {{T}he community code verification exercise for simulating sequences of earthquakes and aseismic slip ({SEAS})},
  author = {{E}rickson, {B}.{A}. and {J}iang, {J}. and {B}arall, {M}. and {L}apusta, {N}. and {D}unham, {E}.{M}. and {H}arris, {R}. and {A}brahams, {L}.{S}. and {A}llison, {K}.{L}. and {A}mpuero, {J}ean-{P}aul and {B}arbot, {S}. and {C}attania, {C}. and {E}lbanna, {A}. and {F}ialko, {Y}. and {I}dini, {B}. and {K}ozdon, {J}.{E}. and {L}ambert, {V}. and {L}iu, {Y}.{J}. and {L}uo, {Y}.{D}. and {M}a, {X}. and {M}c{K}ay, {M}.{B}. and {S}egall, {P}. and {S}hi, {P}. and van den {E}nde, {M}. and {W}ei, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{N}umerical simulations of sequences of earthquakes and aseismic slip ({SEAS}) have made great progress over past decades to address important questions in earthquake physics. {H}owever, significant challenges in {SEAS} modeling remain in resolving multiscale interactions between earthquake nucleation, dynamic rupture, and aseismic slip, and understanding physical factors controlling observables such as seismicity and ground deformation. {T}he increasing complexity of {SEAS} modeling calls for extensive efforts to verify codes and advance these simulations with rigor, reproducibility, and broadened impact. {I}n 2018, we initiated a community code-verification exercise for {SEAS} simulations, supported by the {S}outhern {C}alifornia {E}arthquake {C}enter. {H}ere, we report the findings from our first two benchmark problems ({BP}1 and {BP}2), designed to verify different computational methods in solving a mathematically well-defined, basic faulting problem. {W}e consider a 2{D} antiplane problem, with a 1{D} planar vertical strike-slip fault obeying rate-and-state friction, embedded in a 2{D} homogeneous, linear elastic half-space. {S}equences of quasi-dynamic earthquakes with periodic occurrences ({BP}1) or bimodal sizes ({BP}2) and their interactions with aseismic slip are simulated. {T}he comparison of results from 11 groups using different numerical methods show excellent agreements in long-term and coseismic fault behavior. {I}n {BP}1, we found that truncated domain boundaries influence interseismic stressing, earthquake recurrence, and coseismic rupture, and that model agreement is only achieved with sufficiently large domain sizes. {I}n {BP}2, we found that complexity of fault behavior depends on how well physical length scales related to spontaneous nucleation and rupture propagation are resolved. {P}oor numerical resolution can result in artificial complexity, impacting simulation results that are of potential interest for characterizing seismic hazard such as earthquake size distributions, moment release, and recurrence times. {T}hese results inform the development of more advanced {SEAS} models, contributing to our further understanding of earthquake system dynamics.},
  keywords = {},
  booktitle = {},
  journal = {{S}eismological {R}esearch {L}etters},
  volume = {91},
  numero = {2{A}},
  pages = {874--890},
  ISSN = {0895-0695},
  year = {2020},
  DOI = {10.1785/0220190248},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00020516},
}