Download or read book Winnetka Deformation Zone written by Kenneth M. Cruikshank and published by . This book was released on 1996 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evidence that coactive faulting occurred in the Canoga Park, Winnetka, and Northridge areas during the 17 January 1994, Northridge California earthquake.
Download or read book Winnetka Deformation Zone written by and published by . This book was released on 1996 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of normalized length changes of streets over an area of 9 km2 in San Fernando Valley of Los Angeles, California, define a distinctive strain pattern that may well reflect blind faulting during the 1994 Northridge earthquake. Strain magnitudes are about 3 x 10−4, locally 10−3. They define a deformation zone trending diagonally from near Canoga Park in the southwest, through Winnetka, to near Northridge in the northeast. The deformation zone is about 4.5 km long and 1 km wide. The northwestern two-thirds of the zone is a belt of extension of streets, and the southeastern one-third is a belt of shortening of streets. On the northwest and southeast sides of the deformation zone the magnitude of the strains is too small to measure, less than 10−4. Complete states of strain measured in the northeastern half of the deformation zone show that the directions of principal strains are parallel and normal to the walls of the zone, so the zone is not a strike-slip zone. The magnitudes of strains measured in the northeastern part of the Winnetka area were large enough to fracture concrete and soils, and the area of larger strains correlates with the area of greater damage to such roads and sidewalks. All parts of the pattern suggest a blind fault at depth, most likely a reverse fault dipping northwest but possibly a normal fault dipping southeast. The magnitudes of the strains in the Winnetka area are consistent with the strains produced at the ground surface by a blind fault plane extending to depth on the order of 2 km and a net slip on the order of 1 m, within a distance of about 100 to 500 m of the ground surface. The pattern of damage in the San Fernando Valley suggests a fault segment much longer than the 4.5 km defined by survey data in the Winnetka area. The blind fault segment may extend several kilometers in both directions beyond the Winnetka area. This study of the Winnetka area further supports observations that a large earthquake sequence can include rupture along both a main fault and nearby faults with quite different senses of slip. Faults near the main fault that approach the ground surface or cut the surface in an area have the potential of moving coactively in a major earthquake. Movement on such faults is associated with significant damage during an earthquake. The fault that produced the main Northridge shock and the faults that moved coactively in the Northridge area probably are parts of a large structure. Such interrelationships may be key to understanding earthquakes and damage caused by tectonism.
Download or read book Ground Fracturing at the Southern End of Summit Ridge Caused by October 17 1989 Loma Prieta California Earthquake Sequence written by Sumaryanto Y. Martosudarmo and published by . This book was released on 1997 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Publications of the Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 1997 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Publications of the U S Geological Survey written by and published by . This book was released on 1997 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications of the Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 1997 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Overview and workshop proceedings written by and published by . This book was released on 1998 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Southeastern Geology written by and published by . This book was released on 2005 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book pt A B Engineering written by and published by . This book was released on 1998 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the NEHRP Conference and Workshop on Research on the Northridge California Earthquake of January 17 1994 written by and published by . This book was released on 1998 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Social Sciences and emergency management written by and published by . This book was released on 1998 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The American Suburb written by Jon C. Teaford and published by Routledge. This book was released on 2020-09-10 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: The American Suburb: The Basics is a compact, readable introduction to the origins and contemporary realities of the American suburb. Teaford provides an account of contemporary American suburbia, examining its rise, its diversity, its commercial life, its government, and its housing issues. While offering a wide-ranging yet detailed account of the dominant way of life in America today, Teaford also explores current debates regarding suburbia’s future. Americans live in suburbia, and this essential survey explains the all-important world in which they live, shop, play, and work.
Download or read book SOU CCJ230 Introduction to the American Criminal Justice System written by Alison Burke and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The One World Schoolhouse written by Salman Khan and published by Twelve. This book was released on 2012-10-02 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: A free, world-class education for anyone, anywhere: this is the goal of the Khan Academy, a passion project that grew from an ex-engineer and hedge funder's online tutoring sessions with his niece, who was struggling with algebra, into a worldwide phenomenon. Today millions of students, parents, and teachers use the Khan Academy's free videos and software, which have expanded to encompass nearly every conceivable subject; and Academy techniques are being employed with exciting results in a growing number of classrooms around the globe. Like many innovators, Khan rethinks existing assumptions and imagines what education could be if freed from them. And his core idea-liberating teachers from lecturing and state-mandated calendars and opening up class time for truly human interaction-has become his life's passion. Schools seek his advice about connecting to students in a digital age, and people of all ages and backgrounds flock to the site to utilize this fresh approach to learning. In The One World Schoolhouse, Khan presents his radical vision for the future of education, as well as his own remarkable story, for the first time. In these pages, you will discover, among other things: How both students and teachers are being bound by a broken top-down model invented in Prussia two centuries ago Why technology will make classrooms more human and teachers more important How and why we can afford to pay educators the same as other professionals/DIV How we can bring creativity and true human interactivity back to learning/DIV Why we should be very optimistic about the future of learning. Parents and politicians routinely bemoan the state of our education system. Statistics suggest we've fallen behind the rest of the world in literacy, math, and sciences. With a shrewd reading of history, Khan explains how this crisis presented itself, and why a return to "mastery learning," abandoned in the twentieth century and ingeniously revived by tools like the Khan Academy, could offer the best opportunity to level the playing field, and to give all of our children a world-class education now. More than just a solution, The One World Schoolhouse serves as a call for free, universal, global education, and an explanation of how Khan's simple yet revolutionary thinking can help achieve this inspiring goal.
Download or read book Bulletin written by Wisconsin Geological and Natural History Survey and published by . This book was released on 1907 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geology of the Chicago Region written by and published by . This book was released on 1953 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geology of Ontario written by Ontario Geological Survey and published by . This book was released on 1991 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt:
