Mathworld, hosted and sponsored by Wolfram Research, Inc., offers a large collection of online mathematics resources intended for students, educators, math enthusiasts, and researchers. (See also November 30, 1999 Scout Report for Science & Engineering ) In light of the impact of the recent tsunami in Asia, the January 2005 News section discusses the mathematics of tsunamis. Noting that the full-scale physics and modeling of tsunamis would require the use of supercomputers and complicated custom software, the authors of this article use Wolfram Research's Mathematica software to demonstrate how "a number of approximations can be made that render the problem of tsunami propagation tractable for a computer of modest power.� The authors present and explain the system of coupled partial differential equations used to approximate the behavior of real ocean waves and explain how they simplified the solution process to create the tsunami visualization pictured on the website.