The Brazilian Seismographic Network (RSBR): Improving Seismic Monitoring in Brazil

Marcelo B. Bianchi, Marcelo Assumpção, Marcelo P. Rocha

Penerbit : Seismological Research Letters

Tahun : 2018

The Brazilian Seismographic Network (RSBR) began operating in 2011 with the joint effort of four different institutions: Universities of São Paulo (USP), Brasília (UnB), Rio Grande do Norte (UFRN), and the National Observatory (ON). Initially funded by Petrobras (Brazilian State Oil Company) in a large-scale infrastructure project that started in 2009, RSBR is now sponsored by Brazilian Geological Survey (CPRM). Station installation began in 2011 in southeast (SE) Brazil and finished in 2014 in the Amazon. The network is composed of 84 stations (as of December 2017) operated by those four institutions. CPRM now coordinates the general maintenance and compilation of the Brazilian Seismic Bulletin. RSBR has lowered the detection threshold down to mb 3.5 for earthquakes in Brazil as a whole, and in some areas, such as northeast (NE) and SE Brazil, detection thresholds are about mb 3.0. Besides monitoring Brazilian and South American seismicity, RSBR serves as a backbone for temporary deployments to study crustal and upper-mantle structure.

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