Satellite data reveal nearly 20,000 previously unknown deep-sea mountains

The find roughly doubles the number of known seamounts in Earth’s oceans

Summary: A recent study published in Earth and Space Science reveals that the number of known seamounts in the world’s oceans has almost doubled. Researchers used satellite observations to identify nearly 20,000 previously unknown seamounts, which are underwater mountains that rise above the ocean floor. Seamounts are hotspots of marine biodiversity and promote the upwelling of nutrient-rich water, which is beneficial for marine life. The newly discovered seamounts are mostly small, ranging from 700 to 2,500 meters tall. Some of these seamounts could pose a risk to mariners, as they are shallow enough to be within the depth range of submarines.

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