Add to ORKGBorehole breakouts in 4 nearly vertical oil wells, and several other deviated holes, in the San Fernando Valley and Santa Susana Mountains suggest a maximum horizontal compressive stress direction (S_H) of N49°W. These wells provide information about the stress field from 1974 to 1983 in the uppermost crust (<3 km depth) near the aftershock zones of the January 1994 Northridge earthquake and the February 1971 Sylmar earthquake. This direction of S_H is anomalous with respect to the N to NNE directions of S_H seen in other regional data, but is consistent with the structural complexity of this zone, including local changes in strike of major thrust fault zones and the presence of lateral ramps in both the Santa Susana and San Fernando faults
The acoustic borehole televiewer provides excellent data for the detection and measurement of stress...
Knowledge of the orientation of horizontal in situ stresses is important to some areas of oil and ga...
In this area the active stress from borehole breakout analysis shows a prevalent NE-SW extension, pe...
Borehole elongation in 71 drill holes was used to infer breakout orientation and directions of maxim...
The intricacies of the stresses surrounding the San Andreas Fault are poorly understood by structura...
Borehole breakouts and drilling-induced tensile fractures in the 2.2-km-deep SAFOD pilot hole at Par...
We use borehole breakouts in nonvertical drill holes to constrain the directions of the three princi...
A newly identified blind-thrust fault in the southern Los Angeles basin may have substantial implica...
Hydraulic fracturing stress measurements were made in a 592-m-deep well at Hi Vista, California, 32 ...
Hydraulic fracturing stress measurements were obtained in the Black Butte drill hole, 18 km northeas...
We analyzed measurements of the direction of maximum horizontal compressive stress as a function of ...
The Santa Barbara Channel represents the offshore portion of the Ventura Basin in Southern Californi...
To define the present-day stress field in the upper crust and to understand the recent tectonic acti...
In this paper we present the results of the analysis of borehole breakouts from 115 wells drilled wi...
We invert for the state of stress in the southern California crust using a catalogue of high quality...
The acoustic borehole televiewer provides excellent data for the detection and measurement of stress...
Knowledge of the orientation of horizontal in situ stresses is important to some areas of oil and ga...
In this area the active stress from borehole breakout analysis shows a prevalent NE-SW extension, pe...
Borehole elongation in 71 drill holes was used to infer breakout orientation and directions of maxim...
The intricacies of the stresses surrounding the San Andreas Fault are poorly understood by structura...
Borehole breakouts and drilling-induced tensile fractures in the 2.2-km-deep SAFOD pilot hole at Par...
We use borehole breakouts in nonvertical drill holes to constrain the directions of the three princi...
A newly identified blind-thrust fault in the southern Los Angeles basin may have substantial implica...
Hydraulic fracturing stress measurements were made in a 592-m-deep well at Hi Vista, California, 32 ...
Hydraulic fracturing stress measurements were obtained in the Black Butte drill hole, 18 km northeas...
We analyzed measurements of the direction of maximum horizontal compressive stress as a function of ...
The Santa Barbara Channel represents the offshore portion of the Ventura Basin in Southern Californi...
To define the present-day stress field in the upper crust and to understand the recent tectonic acti...
In this paper we present the results of the analysis of borehole breakouts from 115 wells drilled wi...
We invert for the state of stress in the southern California crust using a catalogue of high quality...
The acoustic borehole televiewer provides excellent data for the detection and measurement of stress...
Knowledge of the orientation of horizontal in situ stresses is important to some areas of oil and ga...
In this area the active stress from borehole breakout analysis shows a prevalent NE-SW extension, pe...