Ok, you are just flat out wrong if you think we know more about the moon than we do the sea floor. Just because you say that doesn't make it plausable. If the undersea volcanos were heating up the oceans there would be warmer water at depth. The fact is that surface waters warming is accelerating and deep water warming has remained constant. Heat budgets for the oceans are out there published and with what we know about ocean mixing it is true that surface waters are rising at rates not explained by heat exchange from depth.