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Development of Seismology
Transcript of Development of Seismology
David Milne has an idea 1857
Mallet's Theories 1872
Grove Gilbert 1897
First Seismograph is created Giuseppe Mercalli created a device to measure
the intensity of damage that could be caused
by an earthquake. May 5th, 1840: David Milne introduced the idea that creating a machine would allow them to measure seismic activity. Robert Mallet believed that an earthquake moved outward from a central focal point Gilbert discovered the fact that earthquakes usually occur around a fault line. First U.S. seismograph was created and installed at the Lick Observatory near San Fransisco. 1906
Mercalli Intensity Scale Timeline: The Development Of Seismology 1906
San Fransisco Earthquake Earthquake in San Fran. created by the San Andreas Fault ended in the destruction of San Fran. and 3,000 deaths. 1906
Harry's hypothesis Harry Reid said that were most likely the result of the build-up of pressure along a fault line. The Moho Boundary 1909 Andija Mohorovii discovered a boundary between Earths mantle and crust 1935
The Richter Scale First Seismograph to measure the magnitude of an earthquake was created by Charles Richter.