A seamount is, basically, a mountain under the sea. Often remains of extinct volcanoes, these underwater mountains can form ranges or stand-alone. They rise from the ocean floor and must be at least 3,280 feet above the surrounding seafloor to be classified as a seamount. Their submerged peaks do not reach the surface of the water, those that do are labeled as islands.
Now, look at Bible book of Jonah written almost 2900 years ago where Jonah spoke of going down to the “bottoms of the mountains.”
Jonah 2:3-6: “For You had cast me into the deep, Into the heart of the seas, And the current engulfed me. All Your breakers and billows passed over me….Water encompassed me to the point of death. The great deep engulfed me….I descended to the roots of the mountains. The earth with its bars was around me forever, But You have brought up my life from the pit, O LORD my God. NASV
When Jonah was in the depths of the ocean, he spoke of going down to the bottoms of the mountains. Only in recent history has man discovered that there are mountains on the ocean floor. Also, oceans have such depths and ridges that are deeper than the height of the highest mountains. The highest mountain Everest is 8.8 Km high from sea level, and the deepest point on earth is Marianas Trench in the western Pacific Ocean, which is almost 8 to 10.9 km deep.