Earth and Environment Atlas

How The Planet Works
Disciplines

Seismology

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Geophysical Science

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The study of earthquakes and the seismic waves that carry their energy through the Earth. Reading those waves is also how the planet's hidden interior, crust, mantle, and the boundary of the core, was first mapped.

Facts
Central Question
Seismology is the scientific study of earthquakes and the generation and propagation of elastic waves through planetary bodies. 1
Scope
Seismology studies earthquakes and the propagation of seismic waves through the Earth, using those waves both to assess earthquake hazard and to image the planet's deep interior. 1
Significance
Rapid seismic location enables tsunami warnings, since seismic waves travel much faster than tsunami waves. 1
Cross-Tradition Connections

Associated With

Early seismometers are among the instruments geophysics grew from, and Earth's internal structure is central to both fields.

Has Scientist

His 1889 report on the 1886 Charleston earthquake proposed a method for estimating an earthquake's focal depth.

Includes

Regarded as the founding event of scientific seismology; the first earthquake studied systematically across a whole region.

The boundary is observed via the discontinuity in seismic wave velocities at its depth.

Sources
1. Seismology (Wikipedia)
Wikimedia FoundationApplications
Quote, Applications
Rapid location of earthquakes makes tsunami warnings possible because seismic waves travel considerably faster than tsunami waves.
View the Source
Clarence Dutton (Wikipedia)
Wikimedia FoundationHas Scientist: Clarence DuttonView the Source
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