The Harvard University Sensor Networks Laboratory has made a public release of a TinyOS-based platform for monitoring seismic and acoustic signals. This system was designed initially for geophysical monitoring at active volcanoes, but can be readily adapted to other applications, including civil structures monitoring, CBM, etc.
This release includes both hardware and software as fielded at our deployment at Reventador Volcano in August 2005. We are also making a public release of the seismoacoustic data set acquired by the network over the 19-day, 16-node deployment, which consists of over 500 MBytes of raw data Code, hardware specs, papers, talks, etc. can be found here: http://www.eecs.harvard.edu/~mdw/proj/volcano.