God is confirming your gifts in prophecy. The submarine being a vessel which revealed upcoming events is a private, intimate space. Keep pressing in as the Lord has His eye on you. As your faith (sub) goes deeper, He will reveal more. Regarding the volcano erruptions, it seems a sign of future events. Also, be careful not to look to “other” prophets (Stone), but lean on the Lord- as you seek Him, He will reveal to you directly.