Earthquake History by Jasmine Evans

On average, a magnitude 8 quake strikes somewhere every year and some 10,000 people die in earthquakes annually. Collapsing buildings claim by far the majority of lives, but the destruction is often compounded by mud slides, fires, floods, or tsunamis. Smaller temblors that usually occur in the days following a large earthquake can complicate rescue efforts and cause further death and destruction.

jasminese1009 — 2015-03-19 15:25:53 UTC

Fault

jasminese1009 — 2015-03-24 15:14:27 UTC

an unattractive or unsatisfactory feature, especially in a piece of work or in a person's character

Epicenter

jasminese1009 — 2015-03-24 15:16:11 UTC

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

Focus

jasminese1009 — 2015-03-24 15:18:05 UTC

the center of interest or activity.

Transform Boundaries

jasminese1009 — 2015-03-24 15:21:03 UTC

- A transform fault or transform boundary, also known as conservative plate boundary since these faults neither create nor destroy lithosphere, is a type of fault.

S Wave

jasminese1009 — 2015-03-31 15:12:13 UTC

S wave A type of elastic wave, the S-wave, secondary wave, or shear wave is one of the two main types of elastic body waves, so named because they move through the body of an object, unlike surface

P Wave

jasminese1009 — 2015-03-31 15:15:51 UTC

P-waves are a type of body wave that is the first wave to arrive at the seismograph, called seismic waves in seismology, that can travel through a continuum

Aftershock

jasminese1009 — 2015-03-31 15:17:09 UTC

An aftershock is a smaller earthquake that occurs after a previous large earthquake, in the same area of the main shock. If an aftershock is larger than the main shock, the aftershock is redesignated as the main shock and the original main shock is redesignated as a foreshock.

Rictor Scale

jasminese1009 — 2015-03-31 15:18:42 UTC

Rictor scale - smaller earthquake following the main shock of a large earthquake.is a base-10 logarithmic scale, which defines magnitude as the logarithm of the ratio of the amplitude of the seismic waves to an arbitrary, minor amplitude

Tectonic Volcanoes

jasminese1009 — 2015-04-07 14:58:12 UTC

A volcano tectonic earthquake is an earthquake induced by the movement (injection or withdrawal) of magma. The movement results in pressure changes in the rock around where the magma has experienced stress. At some point, the rock may break or move.

Volcanic Volcanoes

jasminese1009 — 2015-04-07 14:59:56 UTC

A volcano is a rupture on the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. Earth's volcanoes occur because its crust is broken into 17 major, rigid tectonic plates that float on a hotter, softer layer in its mantle.

Collapse Volcanoes

jasminese1009 — 2015-04-07 15:03:12 UTC

A caldera is a cauldron-like volcanic feature usually formed by the collapse of land following a volcanic eruption. They are sometimes confused with volcanic craters.

Explosion

jasminese1009 — 2015-04-07 15:04:06 UTC

An explosive eruption is a volcanic term to describe a violent, explosive type of eruption.