Reservoir-induced Seismicity in Brazil

被引：0

作者：

M. Assumpção

V. Marza

L. Barros

C. Chimpliganond

J.E. Soares

J. Carvalho

D. Caixeta

A. Amorim

E. Cabral

机构：

[1] Inst. Astronômico e Geofísico,

[2] Universidade de São Paulo,undefined

[3] Rua do Matão 1226,undefined

[4] 05508-900,undefined

[5] São Paulo,undefined

[6] SP,undefined

[7] Brazil. E-mail: marcelo@iag.usp.br,undefined

[8] Observatório Sismológico,undefined

[9] Universidade de Brasília,undefined

[10] Campus Universitário,undefined

[11] 70910-900,undefined

[12] Brasília,undefined

[13] DF,undefined

[14] Brazil. E-mail: obsis@unb.br,undefined

[15] Seismological Laboratory,undefined

[16] National Institute (R & D) for Earth Physics,undefined

[17] RO-76900 Bucharest-Magurele,undefined

[18] Romania. E-mail: marza@unb.br,undefined

来源：

pure and applied geophysics | 2002年 / 159卷

关键词：

Key words: Intraplate seismicity, Brazil, induced earthquakes, seismic hazard.;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

— A compilation of 16 cases of reservoir-induced seismicity in Brazil is presented with maximum magnitudes ranging from 1.6 ML to 4.2 mb. The compilation includes: location of the main epicentral area with respect to the reservoir (inside the lake, at the margin, or outside), predominant geology, and the temporal distribution of the main phase(s) of activity (initial or delayed in relation to impoundment). Data on the regional stress field for some reservoirs is also included. Four recent cases are discussed in more detail: Tucuruí, Nova Ponte, Miranda, and Serra da Mesa. A comparison with all other reservoirs deeper than 30 m and 50 m suggests that the hazard for induced-seismicity varies within Brazil: the NE part of the intracratonic Paraná basin has higher hazard as compared with the southern part of the same basin. No correlation of the induced hazard with variations in natural seismicity can be observed.

引用

页码：597 / 617

页数：20