SeismoSpin is a novel interactive instrument designed around a “Disc-Jockey/mixer” metaphor that gives seismologists a quick and powerful way to explore earthquake data. The custom-built interface and display maps earthquake data to responsive, user-selected windows of time and space. Seismologists who tested SeismoSpin found that the interface provided a greater level of control and dataset understanding than their current tools. Keywords Tangible media, information visualization, data mining, data analysis, interactive visualization, interaction design.