John Milne was given credit for creating the modern seismograph in 1880. His invention of the horizontal pendulum seismograph has been improved throughout the years, but the main concept is still being used today.
Milne spent many years studying earthquakes in Japan due to the high volume of these ground-shaking events. He was given the nickname Earthquake Milne and was considered the father of seismology. After leaving Japan in 1895, he moved to the United States where he created an observatory that is now considered the center for earthquake science. Milne and his science partners Alfred Ewing and Thomas Gray created the Seismological Society of Japan.