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David Milne suggests a machine that could measure seismic activity
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Developed theories about earthquakes movements
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Discovered that earthquakes usually occur along fault lines
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First U.S. Seismograph installed at Lick University
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Giuseppe Mercalli creates the Intensity Scale that measures the damage that may be caused in an earthquake
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Hypothesized that earthquakes were likely the result of buildup pressure along fault lines.
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Andrija Mohorvii discovered that there was a boundary between the earth crust and mantle, naming it the Moho Boundary.
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Charles Richter creates the Richter scale to measure the intensity of earthquakes