This animation was developed by the US Geological Survey after the devastating 2005 earthquake in Pakistan. It shows how addition of shear strength can mitigate earthquake damage to buildings. An accompanying animation “Building Collapse During Earthquake Ground Shaking” shows how earthquake ground shaking of a building without adequate shear strength can result in collapse.
This QuickTime animation shows how P, S, and surface seismic waves are amplified as they pass from strong bedrock areas to areas underlain by weaker layers of rocks and sediment. In loose water-saturated sediment, liquefaction can occur causing the ground to turn to “quick sand” during earthquake shaking. Animation is narrated to explain the events occurring during the animation.
This animation was developed by the US Geological Survey after the devastating 2005 earthquake in Pakistan. It shows how earthquake ground shaking of a building without adequate shear strength can result in collapse. An accompanying animation “Retrofit Building Withstanding Earthquake Ground Shaking” shows how addition of shear strength can mitigate earthquake damage.
QuickTime animation of 2004 Indian Ocean tsunami waves generated by the December 26, 2004 Sumatra – Andaman Islands great earthquake. The magnitude 9.2 great earthquake in the Sunda Trench occurred along the subduction zone between the India – Australia Plate and the southeastern corner of the Eurasian Plate. During the earthquake, the ocean floor in the Sunda Trench was offset and uplifted a column of ocean water producing an elongated mound of ocean water at the surface of the Indian Ocean. That mound of water then propagated to eastward toward northern Sumatra and Thailand and also westward toward Sri Lanka and India.
This animation was developed by scientists at NOAA’s Pacific Marine Environmental Laboratory in Seattle.
This video shows how structural engineers in the San Francisco Bay Area have retrofitted existing structures and designed new structures to withstand ground shaking during earthquakes. Examples of new buildings designed with modern materials are presented. Several examples of building and highway retrofitting are also presented. The example of base isolation of San Francisco City Hall is a major feature of this video segment. This video was developed by the the US Geological Survey to commemorate the 100th anniversary of the 1906 San Francisco earthquake.
This guide is an outline of two PowerPoint presentations (“Plate Tectonics” and “Earthquake Seismology”) that provide an Introduction to Plate Tectonics and Earthquakes. The PDF contains links to teaching resources posted on the TOTLE web site and, in a few cases, to teaching resources on other web sites. The outline format is effective for users who want a quick overview of TOTLE resources or already know of particular resources they wish to download. We recommend that first-time users of TOTLE teaching resources download and view the two PowerPoint presentations to appreciate the logic and context of our resources.