Welcome to The Seismo Guys Blog!

Seismology secrets revealed.
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Secretos sobre sismología revelados.
Siguenos para encontrar secretos de la industria, noticias sobre sismicidad, contenido serio y no serio.
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2 comment(s) on “Welcome to The Seismo Guys Blog!

  1. Cool!
    I look forward to reading more. I’m a PhD candidate student here at Michigan State, and our experience with modern software is limited – so I’m needing all the tips I can get! I’d like to put together a multi-station “shoestring” network on my own dime – 4 stations with about 10Km spacing, all telemetering via ethernet & DSL. You got any tips?

    • Great!

      The most important thing is to be honest about what you can accomplish with a shoestring network of 4 stations: Not much at all. The real question is if you can come up with a clever PhD worthy hypothesis to test with such few stations. One of the limitations to be aware of is that with just 4 stations event locations might be impossible or have enormous error ellipses. Automated processes systems generally demand a minimum of 6 phases, though a trained technician can tease an Earthquake location out of fewer phases, especially is 3-components are available with GPS timing.

      Some tips:
      Know the question you want to answer/ hypothesis you want to test before designing your network
      Define the location resolution you want first and then design your network to those specifications
      Use SeedLink for real-time data acquisition
      Use Earthworm’s carlsubtrig, carlstatrig, trig2disk modules for detection of local seismicity
      Use PQLX for data quality assessment
      Use Seisan for manual processing
      Recognize that response files are important and can not be ignored. Output does not equal input!
      Take advantage of regional stations available through the IRIS DMC
      Go Linux! (The Seismo Guy’s favorite flavor is Ubuntu LTS)

      Maybe you can afford more stations by installing short-period instrumentation? If you are studying local seismicity, for example, broadband seismometers are a costly overkill.

      – Branden

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