Exactlly. Like the current earthquake swarm near Hawthorne Nevada, no one would have noticed before the internet because it is just sagebrush and burros out there.
I am close to Hawthorne. I agree the net brings more stuff, not necessarily more data. The thing about that swarm is that for about two weeks every quake was 4.0+/- 0.2. Now they are running under 4. Can’t remember many swarms that tight.