Question

define the following words (a) earthquake (b) lithosphere (c) volcano (d) magma (e) lava (f) crust (g) epicenter (h) rechter scale (i) shicld volcano (j) composite volcano (k) p-waves (l) s-waves (m) tectonic earthquake (n) coldera (p) lacoliths​

Answer 1

Answer:

1) a sudden violent shaking of the ground, typically causing great destruction, as a result of movements within the earth's crust or volcanic action.

2) the rigid outer part of the earth, consisting of the crust and upper mantle.

3) mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapour, and gas are or have been erupted from the earth's crust.

4) hot fluid or semi-fluid material below or within the earth's crust from which lava and other igneous rock is formed on cooling. "when red-hot magma comes into contact with seawater, an explosion results"

5) hot molten or semi-fluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this.

"tablelands of lava"

6) a hardened layer, coating, or deposit on the surface of something soft.

"a crust of earth

7) the point on the earth's surface vertically above the focus of an earthquake.

8) a numerical scale for expressing the magnitude of an earthquake on the basis of seismograph oscillations. The more destructive earthquakes typically have magnitudes between about 5.5 and 8.9; it is a logarithmic scale and a difference of one represents an approximate thirtyfold difference in magnitude.

9) a broad domed volcano with gently sloping sides, characteristic of the eruption of fluid, basaltic lava.

10) A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. ... They are among the most

11) A P wave is one of the two main types of elastic body waves, called seismic waves in seismology. P waves travel faster than other seismic waves and hence are the first signal from an earthquake to arrive at any affected location or at a seismograph. P waves may be transmitted through gases, liquids, or solids.

12) In seismology and other areas involving elastic waves, S waves, secondary waves, or shear waves are a type of elastic wave and are one of the two main types of elastic body waves, so named because they move through the body of an object, unlike surface waves.

13) A volcano tectonic earthquake is an earthquake caused by the movement of magma beneath the surface of the Earth. The movement results in pressure changes where the rock around the magma has experienced stress. At some point, this stress can cause the rock to break or move.

14) a large volcanic crater, especially one formed by a major eruption leading to the collapse of the mouth of the volcano.

15) mass of igneous rock that is intruded between sedimentary beds and produces a domical bulging of the overlying strata.