The role of asperities in seismicity frequency-magnitude relations using the TREMOL v0.1.0. The case of the Guerrero-Oaxaca subduction zone, México

Abstract

Abstract. Seismicity and magnitude distributions are fundamental for any type of seismic hazard analysis. The Mexican subduction zone along the Pacific Coast is one of the most active seismic zones in the world. Some peculiar characteristics of the seismicity have been observed for a subregion of the subduction regime, which has been named SUB3 in a recent seismotectonic regionalization of the country, suggesting that the observed simplicity of this source arises from the rupturing of single asperities. In this work, we numerically test this hypothesis using the TREMOL (sThochastic Rupture Earthquake MOdeL) v0.1.0 code. As test cases, we choose four of the most significant events (6.5