Geodetic determination of relative plate motion in central California

  title={Geodetic determination of relative plate motion in central California},
  author={James C. Savage and Robert O. Burford},
  journal={Journal of Geophysical Research},
Geodetic data along the San Andreas fault between Parkfield and San Francisco, California (latitudes 36°N and 38°N, respectively), have been re-examined to estimate the current relative movement between the American and Pacific plates across the San Andreas fault system. The average relative right lateral motion is estimated to be 32 ± 5 mm/yr for the period 1907–1971. Between 36°N and 37°N it appears that most, if not all, of the plate motion is accommodated by fault creep. Although strain is… 

Systematic inversion of geodetic data in central California

An extensive set of geodetic observations from the 170-km-long central creeping segment of the San Andreas fault is used to constrain the broadscale deformation pattern, determine the distribution of

Geodetic measurement of horizontal deformation in the northern San Francisco Bay region, California

Analysis of geodolite observations in the coast ranges of northern California indicates that relative plate motion is spread over a wide zone. Little or no deformation occurs to the southwest of the

Strain accumulation on the San Jacinto fault near Riverside, California

Geodimeter measurements from 1969 to 1975 of a geodetic network (aperture 12 km) across the San Jacinto fault near Riverside, California, indicate simple right-lateral shear accumulation at the rate

Geodetic and tectonic analyses along an active plate boundary: The central Gulf of California

The Gulf of California is traversed by the shear plate boundary between Pacific and North American plates and, because of several islands in its central part, offers the possibility of direct

Geodetic measurement of tectonic deformation in the Santa Maria Fold and Thrust Belt, California

Geodetic observations taken over the last 100 years were analyzed to quantify active tectonic deformations in the Santa Maria Fold and Thrust Belt (SMFTB), California. Three different types of data

Geodetic Measurement of Deformation East of the San Andreas Fault in Central California

Triangulation and trilateration data from two geodetic networks located between the western edge of the Great Valley and the San Andreas fault have been used to calculate shear strain rates in the

Space geodetic observation of the deformation cycle across the Ballenas Transform, Gulf of California

The Gulf of California, Mexico, accommodates ~90% of North America‐Pacific plate relative motion. While most of this motion occurs on marine transform faults and spreading centers, several fault

Geodetic detection of active faults in S. California

A new analysis of velocities of geodetic markers straddling the San Andreas Fault System in southern California reveals that interseismic deformation is localized along a dozen sub‐parallel narrow

Geodetic measurement of crustal deformation on the San Andreas, Hayward, and Calaveras Faults near San Francisco, California

Analysis of a geodetic network of 115 lines crossing the San Andreas, Hayward, and Calaveras faults in the vicinity of San Francisco Bay and measured repeatedly between 1970 and 1980 has revealed

Strain accumulation across the Coast Ranges at the latitude of San Francisco, 1994–2000

[1] A 66-monument geodetic array spanning the Coast Ranges near San Francisco has been surveyed more than eight times by GPS between late 1993 and early 2001. The measured horizontal velocities of



Horizontal Earth movement, vicinity of San Francisco, California

Earth movements in California caused by seismic activity in the Earth's crust have been measured by precise surveys at different intervals of time since the 1900 earthquake. Surveys made in 1947 give

Accumulation of tectonic strain in California

The shear-strain accumulation in five tectonically-active areas of California has been calculated from triangulation data supplied by the U. S. Coast and Geodetic Survey. Three of the areas lie

Strain accumulation along the San Andreas Fault

The patterns and rates at which strain is accumulating along the San Andreas fault in California are analyzed from geodetic data. Geodimeter and triangulation data indicate displacements near the

Surveys for crustal movement along the Hayward fault

abstract Several networks of closely spaced points have been established along the Hayward fault for the purpose of monitoring slippage. The results of 1951, 1957 and 1963 surveys of a larger network

The deformation of the ground around surface faults

A rectangular dislocation surface (i.e., a surface across which there is a discontinuity in the displacement vector) is used as a model of a vertical transcurrent fault. The results of Steketee

Horizontal crustal movements in the United States

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Strain accumulation in California

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