Preseismic Deformation Earth Surface

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A significant tool for predicting a future earthquake is preseismic deformation of the ground surface. Preseismic deformation of the ground surface can be described as the ground uplifting or subsiding from its original location. With that being said, preseismic deformation of the ground surface has been a great indicator for impending earthquakes. For example, the Earth’s crust uplifted several centimeters, on the coast near the Sea of Japan, for more than 10 years prior to the 1964 earthquake near Niigata Japan. In addition, extensive slow uplift, of the Earth’s crust, several centimeters to be exact, occurred in a 5 year period before the 1983 Sea of Japan earthquake. Moreover, uplifts up to 1 to 2 meters foreshadowed immense Japanese

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