The complete (3-D) surface displacement field in the epicentral area of the 1999 Mw7.1 Hector Mine earthquake, California, from space geodetic observations

نویسندگان

  • Yuri Fialko
  • Mark Simons
  • Duncan Agnew
چکیده

We use Interferometric Synthetic Aperture Radar (InSAR) data to derive continuous maps for three orthogonal components of the co-seismic surface displacement field due to the 1999 Mw7.1 Hector Mine earthquake in southern California. Vertical and horizontal displacements are both predominantly antisymmetric with respect to the fault plane, consistent with predictions of linear elastic models of deformation for a strike-slip fault. Some deviations from symmetry apparent in the surface displacement data may result from complexity in the fault geometry.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

TriMan: An interactive tool for modeling earthquakes, with applications to the 1992 Landers and 1999 Hector Mine, California earthquakes

Introduction......................................................................................................................... 1 TriMan software package ................................................................................................... 2 The numeric model ......................................................................................................... 3 Inverse m...

متن کامل

Evidence of fluid - filled upper crust from observations of post - seismic deformation due to the 1992 M w 7 . 3 Landers earthquake

I investigate post-seismic deformation due to the 1992 Mw7.3 Landers, southern California, earthquake using the entire catalog of the ERS Synthetic Aperture Radar (SAR) data, and GPS measurements made between 1992 and 1999. The stacked interferometric SAR data spanning the time period of seven years between the Landers and the Hector Mine earthquakes reveal a transient post-seismic deformation ...

متن کامل

Response of desert pavement to seismic shaking , Hector Mine earthquake , California , 1999

[1] The October 1999 Mw 7.1 Hector Mine earthquake in the Mojave Desert, California, generated characteristic surface disturbances on nearby desert pavements. These disturbances included (1) zones of wholesale gravel displacement interspersed with zones of intact pavement, (2) displaced and rotated cobbles, (3) moats around loosened, embedded boulders, (4) filling of abandoned cobble sockets, b...

متن کامل

Comparison of coseismic near-field and off-fault surface deformation patterns of the 1992 Mw 7.3 Landers and 1999 Mw 7.1 Hector Mine earthquakes: Implications for controls on the distribution of surface strain

Subpixel correlation of preevent and postevent air photos reveal the complete near-field, horizontal surface deformation patterns of the 1992 Mw 7.3 Landers and 1999 Mw 7.1 Hector Mine ruptures. Total surface displacement values for both earthquakes are systematically larger than “on-fault” displacements from geologic field surveys, indicating significant distributed, inelastic deformation occu...

متن کامل

تعیین و پهنه‌بندی نرخ ممان لرزه‌ای ژئودزی: مطالعه خاص شبکه سراسری ژئودینامیک ایران

A new and significant source of information on earthquake studies has been provided by space geodesy. The data which are gathered by various techniques of space geodesy, can quantify potential of seismic activity in the region of interest. To achieve this goal, the main advantage of extra-terrestrial geodetic data in comparison with the conventional data from geology and seismology is the abili...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2001