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[on:]

can you give an idea of a good quality and reliable vibration sensor that detects the vibration of the ground for landslide monitoring?

[Reply #1 on:]

A Google search suggests that geologists use 'extensometers' rather than vibration sensors.
Talk to a geologist or a structural engineer.

If you are doing it on the cheap then a laser tape measure may work. You will need to compensate for drift on a daily basis due to the small (1mm) movements involved.

[Reply #2 on:]

thanks

[Reply #3 on:]

http://www.parallax.com/Store/Sensors/PressureFlexRPM/tabid/177/txtSearch/555-28027/List/1/ProductID/89/Default.aspx?SortField=ProductName%2CProductName

[Reply #4 on:]

At the risk of diverting readers from the wonderful world of Arduino, if you want to have fun with earthquakes/ landslides, consider....

http://qcn.stanford.edu/index.php

If you are "deserving", they'll loan you what you need. The rest of us: For $50, they'll sell you a USB device to plug into your computer, and then you become part of a Stanford University/ BOINC project to collect earthquake data. The software runs in the background on your PC (Linux/ Windows/ Mac), as in the "good old days" of the SETI project, for instance.

No Arduino... but a well developed "answer".