Downloading your seismic data and creating reference lines

Now that you found sources of seismic data right click on the image and select Save Image As...

I create a directory for each set of seismic graphics I down load.

Adding reference lines is only necessary if you can't see the breaks between segments and are trying to identify each individual segment. This only occurs when tremors are so great that you can't see where the breaks are. Also, if you are looking at a full page at time, then adding reference lines is also not required at all.

Right click on one of the images you down loaded and select Open with Paint. Other programs that allow you to draw on an image will likely work too. I just happen to use Microsoft Paint for this step.

Use the Line function to extend the division lines between each area of the seismograph.

Notice in red square I have extended the division lines. Neatness counts!  Take your time and zoom in. You only have to do this once. In fact if my pattern works for your data, you may not have to do it at all.

When you have done all the lines, save the image, and then crop it. I use a different program to crop my photos. You can crop it anyway you want. Just be sure you do not resize it. When you are done drawing all your lines and cropping the lines, you should have a file that looks like this:

These marks help you line up the sections of the seismograph you analyze using the ImageJ software.

The final prep step is to load each seismograph image in Paint and use the Paste From function to load the pattern you created. Again, you might be able to skip making your own pattern, if the pattern above matches your images.

When all done a completely prepared seismograph image will look like this.

Notice the markings on the left.

Congratulations if you made it this far!

You are now ready to begin processing your data using ImageJ.