Topic 2 Part 1 Flashcards
are waves of energy that travel
through the Earth’s layers, generated by events
like earthquakes, volcanic eruptions, or manmade explosions.
Seismic waves
These waves are responsible for the shaking felt
during an earthquake and are crucial for
understanding Earth’s internal structure, as
they provide information about the composition
and properties of the Earth’s crust, mantle, and
core.
Seismic waves
These waves are responsible for the shaking felt
during an earthquake and are crucial for
understanding Earth’s internal structure, as
they provide information about the composition
and properties of the Earth’s crust, mantle, and
core.
Seismic waves
These travel through the Earth’s
interior.
Body Waves
These travel through the Earth’s
interior.
Body Waves
These travel along the Earth’s
surface.
Surface Waves
Also known as compressional waves,
are the fastest type of seismic waves and are
the first to be detected by seismometers during
an earthquak
P-Waves (Primary Waves)
Also known as compressional waves,
are the fastest type of seismic waves and are
the first to be detected by seismometers during
an earthquak
P-Waves (Primary Waves)
compress and expand the
material they travel through, moving particles in
the same direction as the wave’s propagation (a
back-and-forth motion)
P-Waves (Primary Waves)
compress and expand the
material they travel through, moving particles in
the same direction as the wave’s propagation (a
back-and-forth motion)
P-Waves (Primary Waves)
travel along the Earth’s surface
and typically cause the most damage during an
earthquake because of their larger amplitudes
and slower speeds.
Surface waves
travel along the Earth’s surface
and typically cause the most damage during an
earthquake because of their larger amplitudes
and slower speeds.
Surface waves
These waves cause a rolling motion, similar to
ocean waves, as they move along the Earth’s
surface
Rayleigh Waves:
These waves cause a rolling motion, similar to
ocean waves, as they move along the Earth’s
surface
Rayleigh Waves:
move both vertically
and horizontally, causing particles to follow an
elliptical path
Rayleigh Waves:
