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- The history of early seismometers
- Link to live Seismic Drum at Geonet's Mangatainoka River station in New Zealand
- The Lehman amateur seismograph, from Scientific American- not designed for calibrated measurement.
- Sean Morrisey's professional design of an amateur teleseismograph Also see Keith Payea's version Both accessed 2010-9-29 Morrissey was a professional seismographic instrument engineer. This superior design uses a zero-length spring to achieve a 60-second period, active feedback and a uniquely convenient variable reluctance differential transducer, with parts scavenged from a hardware store. The frequency transform is carefully designed, unlike most amateur instruments. Morrisey is deceased, but the site remains up as a public service.
- USGS evaluation of Streckheisen STS-2 Seismometer models- Streckheisen is a common make of research seismometers
- Pacific Northwest Seismograph Network-PNSN is a seimograph network in the northwest USA
- SeisMac is a free tool for recent Macintosh laptop computers that implements a real-time three-axis seismograph.
- The Incorporated Research Institutions for Seismology (IRIS) is a principal U.S. seismological instrumentation and data facility, principally supported by the National Science Foundation and the U.S. Department of Energy.
- The Development Of Very-Broad-Band Seismography: Quanterra And The Iris Collaboration discusses the history of development of the primary technology in global earthquake research.
- Video of seismograph at Hawaiian Volcano Observatory - on Flickr - retrieved on 2009-06-15.
- Seismoscope - Research References 2012
- Iris EDU - How Does A Seismometer Work?