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Earthquakes and Seismotectonics Chapter 5

Earthquakes and Seismotectonics Chapter 5

Earthquakes and Seismotectonics Chapter 5. What Creates Earthquakes?. The term “Earthquake” is ambiguous: Applies to general shaking of the ground and to the source of the shaking We will talk about both, but are mainly concerned with the latter Earthquakes occur due to

By thi
(703 views)

Overview of Induced Seismicity in Geothermal Systems

Overview of Induced Seismicity in Geothermal Systems

Overview of Induced Seismicity in Geothermal Systems. Presented to DOE E. Majer LBNL July 15, 2009. Electric or Thermal Application. Production Well. Injection Well. Hot Basement Rock. Man-made Fracture System. Enhanced Geothermal Systems. Located at depths of 3-10 km

By lobo
(106 views)


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Historical Seismicity of New England

Historical Seismicity of New England

Historical Seismicity of New England. Justin Starr Weston Observatory Department of Earth and Environmental Sciences, Boston College. How does one determine an earthquake epicenter and magnitude, if no seismic data is recorded?.

By preston-nunez (77 views)

Seismicity

Seismicity

Seismicity. Seismic Image of Venezuela Basin. Seismic waves. Seismic wave travel in a homogeneous Earth. Seismic wave travel in which density increases monotonously. Seismic wave travel in a layered Earth. The P-wave shadow zone. The S-wave shadow zone. P and S-wave velocities.

By angeni (209 views)

Seismicity Earthquakes

Seismicity Earthquakes

By meadow (81 views)

Global seismicity

Global seismicity

Global seismicity. Earthquake epicenters (locations) are shown by the colored dots. Note locations and concentrations of activity. Compare with volcano locations. Plate collisions and volcanoes. Ocean-ocean Ocean-continent Continent-continent. India-Asia continent-continent collision.

By tekla (154 views)

Intraslab Seismicity

Intraslab Seismicity

Intraslab Seismicity. Largest intraslab earthquakes are in south sound region at base of microseismicity, including 1949 M7.1; 1965 M 6.5 and 2001 M6.8 Deepest earthquakes are downstream from large events Intraslab seismicity is virtually absent north and south of arch

By ksandra (0 views)

Yibal Seismicity

Yibal Seismicity

Yibal Seismicity. M. N. Toksöz, D. R. Burns and S. Sarkar, S. Kuleli, H. Zhang. November, 2007. Summary. Surface subsidence, deformation and earthquakes are induced by gas and oil production. Subsidence is monitored by leveling, GPS and InSAR.

By lynch (273 views)

Intraplate Seismicity

Intraplate Seismicity

Intraplate Seismicity. Finite element modeling. Introduction. Spatial patterns (Fig. 1) Randomly scattered (Australia) Isolated “seismic zones” (CEUS) Connected seismic belts and networks (N.China) Temporal patterns (Fig. 2) Clustering and then long periods of quiescence (Australia)

By calvin (154 views)

Seismicity of Iceland

Seismicity of Iceland

Seismicity of Iceland. Dr. Benedikt Halldorsson. Earthquake Occurrence in Iceland. Overview Tectonics Interplate Earthquakes Transform Zones South Iceland Seismic Zone Tjörnes Fracture Zone (North Iceland Seismic Zone) Volcanic Zones Reykjanes Peninsula Hengill Triple-junction

By rane (153 views)

Geodesy, Seismicity, Neotectonics

Geodesy, Seismicity, Neotectonics

Geodesy, Seismicity, Neotectonics. Shimon Wdowinski Rowena Lohman Cecilio Rebollar Gina Schmalzle Kim Outerbridge Jeff McGuire Gordon Seitz Pat Williams Tini Plattner Jose Frez. What do we know?. First-order kinematics

By nate (188 views)

Smoothed Seismicity Rates

Smoothed Seismicity Rates

Smoothed Seismicity Rates. Karen Felzer USGS. Decision points #1: Which smoothing algorithm to use?. National Hazard Map smoothing method ( Frankel , 1996 )? Helmstetter et al. (2007) smoothing method down to M 2, back to 1981?

By wyanet (138 views)