A

M

ASSUMPÇAO , Marcelo

Last name: ASSUMPÇAO

First name: Marcelo

April 2017 (v1)

Journal article

Metadata-only

Earthquake source properties of a shallow induced seismic sequence in SE Brazil

Agurto-Detzel, Hans Bianchi, Marcelo Prieto, Germán

We study source parameters of a cluster of 21 very shallow (<1 km depth) small‐magnitude (Mw < 2) earthquakes induced by percolation of water by gravity in SE Brazil. Using a multiple empirical Green's functions (meGf) approach, we estimate seismic moments, corner frequencies, and static stress drops of these events by inversion of their...

Uploaded on: December 4, 2022
August 1, 2017 (v1)

Journal article

Metadata-only

Improving the characterization of the seismic source in Bebedouro, Paraná Basin, Brazil: further evidence of seismicity triggered by hydraulic stimulation in water wells

Dicelis, Gabriel Assumpçao, Marcelo Prado, Renato Luiz

We investigate a long series of small earthquakes (magnitude < 3) with annual cycles between 2004 and 2010 that occurred in the northeastern Paraná Basin, Brazil. These events were attributed to pore pressure increase in a fractured aquifer caused by the drilling of several water wells down to depths of ∼200 m. Because of the poor depth...

Uploaded on: December 4, 2022