Geofísica

Porto dos Gaúchos seismic zone (PGSZ) is already a well-known seismogenic zone in terms of stress regime, fault location, physical dimension and structural characteristics. It is located in a Phanerozoic sedimentary basin; such 500 m thickness sediments overlie the crystalline basement of the Amazon Craton - Brazil.

The Metropolitan Area of São Paulo (MASP), situated in the Southeast region of Brazil, is among the ten largest megacities in the world, and largely impacted by air pollution due to the mobile emission of a fleet of more than 7 million vehicles and industrial sources.

Shear-wave splitting from core-refracted (SKS) waves indicates the amount and orientation of seismic anisotropy in the upper mantle, and is used to infer past and present mantle dynamics and continental evolution. Previous SKS studies in South America concentrated mainly in the Andes and in SE Brazil.