The History of Micro Earthquakes

We can tell where the edge of these plates are, where the cracks are on the earth's surface because we can measure the seismic activity. So that's why like the Atlantic Ocean is growing and the Pacific Ocean is shrinking. If you put a dot on the earth, wherever there's an earthquake, they come out to make these patterns that show you the edges of the plates. You can hear the continents crunching kind of.