Book is part of the Systems Analysis Branch homepage at the National Aeronautics and Space Administration's Goddard Space Flight Center. The Book explains and demonstrates different finite element modeling and analysis techniques, including frequency response-vibration and modal weight calculations. Non-NASA finite element modeling sites. Virtual Earthquake Virtual Earthquake was created by California State University, Los Angeles, as part of the Electronic Desktop Project. This virtual simulation allows students to locate the epicenter of an earthquake and determine its magnitude on the Richter scale.
Students can choose from four geographic areas for their simulation.
Virtual Earthquake carefully guides the student through the steps required to calculate the epicenter and to determine the magnitude of a simulated earthquake. The actual epicenter is provided along with the epicenter determined by the user. The user can then determine the magnitude of the earthquake as measured on the Richter scale. The entire contents of the Water Measurement Manual, provided by the US Bureau of Reclamation in collaboration with the US Department of Agriculture, is available. This web version is based on the third edition of the manual which was released in 1997.