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Transcript of Seismology Timeline
May 5, 1840 David Milne suggested a machine that could be invented to measure seismic activity. Robert Mallet
March 27, 1857 Mallet's work created some of the earliest theories about seismology The First Seismograph February 10, 1897 The first seismograph was put in near San Francisco, California. It was put in in the Lick Observatory. The Mercalli Intensity Scale April 12, 1906 Giuseppe Mercalli, a seismologist, created a device to measure the intensity or likelihood of damage that may be caused by an earthquake. The San Francisco Earthquake December 4, 1906 A major earthquake caused by the San Andreas Fault that caused 3,000 deaths and destruction of San Francisco. Harry Reid December 20, 1906 Harry Reid hypothesized that earthquakes were most likely the outcome of pressure build up along faults. Moho Boundary December 18, 1909 A boundary between the earths crust and the earths mantle was discovered by Andrija Mohorovii. The Richter Scale September 30, 1935 Charles Richter created the first seismograph. He used the Richter Scale to measure the magnitude of earthquakes. S
S http://science.yourdictionary.com/articles/timelines-of-development-of-seismology.html www.timetoast.com/timelines/129673