20659 Zip Code (Mechanicsville, MD) Detailed Profile. Cities: Mechanicsville, MD (4.97%), Golden Beach, MD (4.43%), Charlotte Hall, MD (2.79%) Counties: St. Mary's County, MD (96.05%), Charles County, MD (3.95%) Estimated zip code population in 2015: 24,656. Zip code population in 2010: 23,498.
the volcano mauna loa in hawaii used to be thought of as the largest volcano in the world but scientists have discovered one that s bigger much much bigger tamu massif is a massive volcano about the size of the british isles or more than three times the size of new brunswick
On the floor of the Pacific Ocean lies a giant that has been sleeping for 145 million years. The Pacific Ocean floor hosts Earthâs largest volcano â Tamu Massif, at 120,000 square miles. William Sager/University of Houston William Sagerâs 20-year hunch has paid off in a very big way. 1  In September, the University of Houston geophysicist and his team announced that Tamu Massif, an underwater volcano about a third of the way from Japan to Hawaii, is by far the largest volcano on the planet.