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Seismic Programs for use with a DATAQ A/D

WinQuake and SAC Utility Programs

How to use WQFilter  Recommendations on how to set up the filters.

Try out WQFilter.exe  Download the application and sample PSN files to work with.

A vertical seismometer design tool

TravelTime, a program that plots and curve fits data read in from the Jeffreys and Bullen Seismological Tables. 

Calculators, one for S-P distance, one for damping estimation

Program for Computing Earthquake Magnitude

SeisSim, a program to illustrate the response of a damped pendulum seismometer to various driving functions and output filtering

BinPatch, a versatile program for  reading and patching binary files

FFT Demo Program

Schematic and photo of a once-per-minute time marker generator

The history of my sensor designs

My horizontal sensors

My vertical sensor

Calibration of sensor response

Period-extending filter algorithm and analysis

Examples showing the benefit of a period-extending digital filter

NOTE: This site contains applications written Visual Basic 6.0. Not all systems have the runtime files necessary to run VB6 programs. If you should experience run-time error messages, please download "WQFilter.zip", extract the contents, and execute the setup program. After successful installation, you will be able to run any of my applications as they are.