A tool and method for adjusting the direction of a spray nozzle is provided. With the present invention, it is possible to search in millions of seismograms and determine parameters for an earthquake in a few second, and thus realize rapid and even real-time estimation of earthquake parameters. User credentials may be received by one of the client applications and passed to a credential store running as a local software object in association with the user’s logon session. The air quality test kit comprises a test filter, a filter backing pad, a support and a pair of end caps.