Launching a new product or service isnât what is used to be. In the good old days, you could hire a PR agency to craft a press release and set up a press tour.
But if you touch lava at all you will be very badly burnt. Yes you will die if you are exposed to it for any amount of time.
Some of the water will boil and the lava will cool. If the lava cools enough, it will harden. If it cools even more, the water may stop boiling. Check this video:Undersea Volcano Eruptions Caught On Video.