I’m no geologist, but I’d be rather surprised to hear of a volcano that spits large volumes of material out at thousands of feet per second (delta-V necessary to transition from a lunar orbit to Earth). I would think it’s more likely that if there was a correlation between a large impact on Earth and seismic activity on the moon it would be Earth’s seismic activity that had a larger influence on the moon. Again, not in the field so take this all with salt.