2004 Indian Ocean earthquake and tsunami and a network of sensors is needed to detect it. Setting up the communications infrastructure to issue timely warnings is an even bigger problem, particularly in a relatively impoverished part of the world. Tsunamis are more frequent in the Pacific Ocean than in other oceans because of earthquakes in the "Ring of Fire". Although the extreme western edge of the Ring of Fire extends into the Indian Ocean (the point where the earthquake struck), no warning system exists in that ocean. Tsunamis there are relatively rare despite earthquakes being relatively frequent in Indonesia. The last major tsunami was caused by
Ring of Fire (anthology) "topnotch choice for alternate history fans and essential for libraries owning 1632 and 1633" and that these "15 stories contribute directly to the main plot lines of the series and illustrate the complex and multifaceted nature of historical fiction." Ring of Fire was listed on the Locus (magazine) Hardcovers Bestsellers List for two months in a row during 2004, topping at number 2. Ring of Fire (anthology) Ring of Fire is the third published book by editor-author-historian Eric Flint of the 1632 series, an alternate history series begun in the novel "1632" (February 2000). The "Ring of Fire" is both