DLESE description of Seismic/Eruption and Seismic Waves Computer Programs

These two programs are available for free download from this website. Also included is the technical information users might need to have the program running in the classroom, including how to update the database of earthquakes. Seismic/eruption is a program that plots the epicenter of all earthquakes within a time period, geographic region, and magnitude chosen by the user. This program also does something similar for global volcanoes. This site includes a screen capture of what the program looks like in action. Seismic Waves is a program for the visualization of wave propagation. It is a Windows program that illustrates how waves propagate from an earthquake hypocenter to seismic stations throughout the earth. One sees waves propagating out from the epicenter on a three-dimensional view of the earth at the same time one sees waves propagating through a cross-sectional view of the earth. These two wave propagation views are synchronized with actual event waveforms so that as a particular phase arrives at a station, one sees the effect on the seismogram. This page also has links to AmaSeis and Eqlocate. AmaSeis is a program to obtain seismographs from the AS-1 Amateur Seismometer. Eqlocate is an interactive program to locate earthquakes using P-wave arrivals. The EqLocate program allows users to select P-wave arrivals of a number of seismograms for an earthquake and find its location.