How often do earthquakes happen on the Mid-Atlantic Ridge?
Because the Mid-Atlantic Ridge is so very long, many large earthquakes (greater than magnitude 3) happen along the ridge each day. However, if you were to stand in one spot on the ridge, you wouldn’t feel all of these. You would only feel the large earthquakes that happened nearby. So you would probably only feel one or two earthquakes each year. In addition, at each spot along the ridge, there are about 20-50 very small earthquakes every day that are too small to feel. (Tim Crone) How do underwater volcanoes affect the ocean floor? Underwater volcanoes affect the seafloor in many ways. The heat and magma from these volcanoes make the ocean much more shallow near a volcano. Some marine volcanoes even break the surface like Hawaii. Marine volcanoes can also cause water to circulate in the crust. This can bring strange chemicals to the seafloor that help underwater biological communities thrive! (Tim Crone) When a volcano erupts does the lava come out and kill sea creatures? Yes!! It can
