000012036 001__ 12036
000012036 005__ 20141205160013.0
000012036 04107 $$aeng
000012036 046__ $$k2008-10-12
000012036 100__ $$aWang, Shuangxu
000012036 24500 $$aUsing GPS and Other Crust Deformation Data for Research the Some Common Characteristics of Tectonic Deformation Abnormity Before the Strong Earthquake

000012036 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000012036 260__ $$b
000012036 506__ $$arestricted
000012036 520__ $$2eng$$aBy the high-precision GPS and repetition leveling data observed from the northeast margin of the northeast margin of Qinghai-Tibet plateau and by comparing them with geological structures and strong earthquakes activities in this area, the some common characteristics of regional tectonic deformation abnormity before the strong earthquake are studied. The results show that: a).For horizontal movement-deformation , it shows features of centralized high strain area (or zone) of dominating shear deformation related to active block and faults; b).For regional vertical deformation, it shows distribution features of abnormal apophysis area and dense belt-high gradient belt of vertical difference deformation (some of them reflect distribution of four quadrants) related to tectonics; c).Common features of regional vertical deformation abnormity area and high strain distribution area of horizontal deformation. Having analyzed preliminarily formation mechanism of these common characteristics of abnormity, it concludes that: these are results, controlled by basic united tectonic stress field of large-range, caused by stress-strain accumulation and certain phase strong earthquake, according to deformation difference brought about on tectonic position in the boundary zone and inner second-order faults of active blocks by unstable and inharmonious features for movement of block system of different levels and deformation of boundary. Based on above, the meaning of medium-term prediction of strong earthquakes is discussed, grounding on common features of regional deformation abnormity, and combining with background of geological tectonic activities.

000012036 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012036 653__ $$aKEYWORDS Northeast margin of Qinghai-Tibet plateau, GPS and leveling, Geodetic deformation abnormity characteristics before earthquake, Meaning of prediction

000012036 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000012036 720__ $$aWang, Shuangxu$$iZhang, Xi$$iZhang, Sixin$$iZhang, Xiaoliang$$iXue, Fuping
000012036 8560_ $$ffischerc@itam.cas.cz
000012036 8564_ $$s888748$$uhttps://invenio.itam.cas.cz/record/12036/files/S02-041.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S02-041.
000012036 962__ $$r9324
000012036 980__ $$aPAPER