Information obtained from this evidence led scientists to believe that the continents were parts of larger plates: mid-ocean ridges and earthquakes.
Mid-ocean ridge - In the center of an ocean basin, a mid-ocean ridge is a long, linear, seismically active seabed mountain range that was often created by plate tectonics as a result of molten magma eruptions.
An earthquake - An earthquake is described as a rapid, natural shaking of the ground that happens as a result of repeated movement in the upper mantle and crust of the Earth (lithosphere), which normally generates some seismic waves.
The fact that earthquakes and mid-ocean ridges are both components of bigger plates means that they are both characteristics of the Earth's crust that either directly or indirectly affect the different continents of the planet Earth.
In conclusion, mid-ocean ridges and earthquakes led scientists to hypothesize that the continents were fragments of bigger plates.
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