This is How it is Built Flashcards
the shaking of the ground caused by the tremendous release of energy due to pressure in Earth’s crust
earthquake
the slipping of a block of Earth’s crust
fault
the origin at which the earthquake occurs
hypocenter or focus
the point directly above the focus on the surface
epicenter
it travels along and within the lithosphere
seismic waves
2 types of waves
body waves and surface waves
are in the form of primary or secondary waves
body waves
they travel through the interior of Earth and through solid and fluid materials.
Primary waves or compressional waves
they travel through solid materials only within the interior of Earth
secondary waves or transverse waves
they are waves that occur on the surface of the lithosphere
surface waves
they sweep the surface in a side-to-side movement
love waves (L-waves)
they shake the ground in an up-and-down movement
Rayleigh waves (R-waves)
the instrument that detects and measures seismic waves
seismograph
the internal part of a seismograph
seismometer
it is the quantitative measure of the amount of energy released by an earthquake
magnitude
the most common scale for the magnitude of an earthquake
Richter scale
it refers to the strength of ground shaking during an earthquake
intensity
it is the widely known used scale for identifying earthquake intensity
Modified Mercalli Intensity Scale
it should include important things that can be easily used and consumed once an earthquake happens.
emergency kits