new considerations about chile’s seismic hazard sergio. barrientos scientific director
DESCRIPTION
New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director Servicio Sismológico, Universidad de Chile [email protected]. Energy Released by Earthquakes. Page 3. Data from Engdahl and Villaseñor (2003). Wadati-Benioff Zone. Barazangi and Isacks (1976). - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/1.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
New Considerations about Chile’s Seismic Hazard
Sergio. Barrientos
Scientific Director
Servicio Sismológico, Universidad de Chile
![Page 2: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/2.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
![Page 3: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/3.jpg)
Page 3
Energy Released by Earthquakes
![Page 4: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/4.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
Data from Engdahl and Villaseñor (2003).
![Page 5: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/5.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
Wadati-Benioff Zone
Barazangi and Isacks (1976)
Engdhal and Villaseñor (2003)
![Page 6: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/6.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
1922
Beck et al, 1998
![Page 7: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/7.jpg)
Page 7
ThrustSismos Prisma
Outerise
Intraplaca prof. Intermedia
Corticales
Seismic Sources in Chile
fosa
costa
![Page 8: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/8.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
![Page 9: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/9.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
Barrientos (1997)
![Page 10: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/10.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
Chillan, 1939Beck et al., (1998)
![Page 11: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/11.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
Fault size:Length: 1000 kmWidth: variable 120-150 kmAverage displ: 17 mMaximum displ: 35-40 mRecurrence: At least 500-yr
![Page 12: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/12.jpg)
Page 12
Pre-1960 Events (Cisternas et al., 2005)
![Page 13: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/13.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
Dec, 1949, Magallanes
![Page 14: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/14.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
Illapel, 1997
Outer rise1939, 1950, 2005
2004Trench
Trench
![Page 15: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/15.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
Mag h (km) p.a. Reference
Santiago 1945 7.1 71 0.13g Lepe y Torre (1950)
Las Melosas 1958 6.9 5 -10 0.05g Piderit y Lomnitz (1960)
La Ligua 1965 7.1 72 0.19g Malgrange et al. (1981)
La Ligua 1971 7.5 30 0.17g Malgrange et al. (1981)
M=7.5 every 110 yr
![Page 16: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/16.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
ES(1)
ES(2)
eM
E SR
20
Tarapacá, 2005
January 7, 2003 Mw 5.9
![Page 17: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/17.jpg)
Tarapacá, 2005
![Page 18: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/18.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
03.1
83.0
)60(
3.71
R
ea
sM
91.30006.0)log(74.338.1)( rrMrI S
Attenuation relationships
Saragoni et al.
Barrientos (1981)
![Page 19: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/19.jpg)
Montessus de Ballore Conference Santiago, Chile, Nov. 2006
![Page 20: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/20.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
Martin (1991)
![Page 21: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/21.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
Brief Update of the Earthquakes inTocopilla Mw= 7.7 andAysén Mw= 6.2
![Page 22: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/22.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
Graber (1997)
![Page 23: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/23.jpg)
Page 23
Coseismic Displacement, Antofagasta30 Julio 1995 Mw=8.0
Melbourne et al.., 2002De Louis et al., 1997
![Page 24: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/24.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
Coseismic Displacement, Antofagasta30 Julio 1995 Mw=8.0
![Page 25: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/25.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
Coseismic Displacement, Tocopilla14 Nov 2007 Mw=7.7
![Page 26: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/26.jpg)
Observatory Earthquake Readiness Workshop , La Serena Dec. 2007
![Page 27: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/27.jpg)
Page 27
J. Cembrano (2007)
AYSÉN Marco Tectónico
![Page 28: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/28.jpg)
Evolución de la Sismicidad
Page 28
21 Apr 06 M= 6.2
5.2
4.4
4.8
5.14.5
5.6
5.5
![Page 29: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/29.jpg)
Page 29
Caída de Rocas, Deslizamientos y Tsunami21 Abril 2007
![Page 30: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/30.jpg)
Page 30
Generacion de Tsunami
![Page 31: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/31.jpg)
Page 31
Punta Tortuga
![Page 32: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/32.jpg)
Page 32
Epicenters and Focal Mechanisms
![Page 33: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/33.jpg)
Observatories Earthquake Readiness Workshop , La Serena Dec. 2007
Thanks a lot for yourattention
![Page 34: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/34.jpg)
VI Congreso Chileno de Geotecnia Valparaíso, Nov. 2007
Murdie (1993)
![Page 35: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/35.jpg)
VI Congreso Chileno de Geotecnia Valparaíso, Nov. 2007
![Page 36: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/36.jpg)
VI Congreso Chileno de Geotecnia Valparaíso, Nov. 2007
![Page 37: New Considerations about Chile’s Seismic Hazard Sergio. Barrientos Scientific Director](https://reader035.vdocuments.net/reader035/viewer/2022062315/56815828550346895dc58e41/html5/thumbnails/37.jpg)
VI Congreso Chileno de Geotecnia Valparaíso, Nov. 2007