Welcome to Dave Booth's Earthquake page
Below is 3 windows showing local movement from a Marks Products 4.5hz Geophone.
1st is East/West geophone movement.
2nd is North/South geophone movement.
3rd is Vertical geophone movement.
This page refreshes every 5 mins.
Below are from my old home made Lehman which I scraped. Will build another soon.
My station consists of a Mark Products 4.5hz 3 Component Geophone buried in a 3 lb coffee can 5 feet deep with a mixture of sand and small rocks. The A/D converter is a 16bit Serial A/D converter that Larry Cochrane builds. Here is a link to Larry's Redwood City Public Seismic Network The Software I use is Larry's WinSDR which is a great program. To extract the earthquakes from the plots above I use Larrys WinQuake software. Can't beat it for ease of use!
Here is a pic of my Lehman Seismograph.
This file is maintained by David Booth!
Last edit date March/12/2012