The History of Seismology

By tiffanybabb

  • David Milne

    Milne suggested that a machine could be invented to measure seismic activity.
  • Mallet's Theories

    Mallet's Theories

    Mallet, an Irish engineer and scientist, studied and developed theories about earthquakes. He thought that an earthquake moved outward from a central focal point.
  • Grove Gilbert

    Grove Gilbert

    Grove Gilbert discovered that earthquakes usually center around a fault line.
  • First U.S.Seismograph

    First U.S.Seismograph

    The first seismograph was installed in the U.S, near San Fransisco at the Lick Observatory.
  • The Mercalli Intensity Scale

    The Mercalli Intensity Scale

    Giuseppe Mercalli was a seismologist who created a device to measure the intensity or likelihood of damage that may be caused by an earthquake.
  • The San Fransisco Earthquake

    The San Fransisco Earthquake

    A major earthquake caused by the San Andreas Fault that resulted in 3,000 deaths and destruction of San Fransisco.

  • Harry Reid

    Harry Reid hypothesized that earthquakes were likely the result of the build-up of pressure along faults.
  • Moho Boundary

    Moho Boundary

    A boundary between the earth's crust and mantle was discovered by Andrija Mohorovii.
  • The Richter Scale

    The Richter Scale

    Charles Richter created the first seismograph. He used the Richter Scale to measure the magnitude of earthquakes.