[KarlInOhio]

Earthquakes are like

rumble rumble RUMBLE RUMBLE RUMBLE RUMBLE RUMBLE rumble rumble

Underground nuclear tests are more like:

.......RUMBLE RUMBLE RUMBLE rumble rumble

Experts can tell them apart.

[Strategerist]

I’m well aware of that - I haven’t been able to locate a sufficiently detailed webicorder near the event.

[Churchillspirit]

Very good explanation.

Thank you.