That’s too bad that the app is not working! Are you running it on a computer or a laptop? The experiment mentioned that the program requires high speed internet. Perhaps as a starting point you could try to find data online from a similar experiment and examine this seismic evidence. If you cannot access high speed internet/ the program still won’t function properly, you could do this very similar Science Buddies Experiment: “How Fast Do Seismic Waves Travel?”, which doesn’t require you to download anything. Basically, you would look at historical data from the Northern California Earthquake Data Center to calculate how fast a seismic wave from an earthquake travels. Here is the link to the experiment: https://www.sciencebuddies.org/science- ... ves-travel
Hope this helps and let me know if you have any more questions!