MINI UNIT

Richter Scale

________- measures the earthquake's magnitude.

Seismometer

________- internal part of seismograph, a mass or pendulum mounted to a spring.

Liquefaction

________- cause soil to lose strength and flow.

Magma

________- rocks inside the volcano.

Pyroclastic Flow

________- high- speed __current of scorching gas & roc__k, creates fire along path.

Hydrogen Sulfide

Volcanic Gases- responsible for acid rain, emits hazardous gases ________ (H2S) & Sulfur Dioxide (SO2)

Lahar

________- Indonesian word of Destructive Mudflow, prompted by strong rains or earthquake.

important cause of earthquake

Ground Shaking- most ________ damage, created by SEISMIC earth movements.

Seismograph

________- records the motion of the ground during an earthquake.

Ashfall Tephra

________- airborne ash, most hazardous ill effects of volcanic eruption.

Ballistic Projectiles

________- rock emitted by eruption, like cannonballs.

Intensity

________: strength of shaking during the earthquake.

Magnitude

________: energy released of the earthquake.

Tsunami

________-"seismic sea waves, "caused by underwater volcanic eruption, earthquake, or coastal landslide.

Earthquake Induced Ground Subsidence

________- large portion of land to sink /rocks to deform, also rocks breaking under stress.

Lava Flows

________- Liquefy rocks that flow down.

Lahar

Indonesian word of Destructive Mudflow, prompted by strong rains or earthquake

Ashfall/Tephra

airborne ash, most hazardous ill effects of volcanic eruption

Pyroclastic Flow

high-speed __current of scorching gas&roc__k, creates fire along path

Ballistic Projectiles

rock emitted by eruption, like cannonballs

Volcanic Gases

responsible for acid rain, emits hazardous gases Hydrogen Sulfide (H2S) & Sulfur Dioxide (SO2)

Lava Flows

Liquefy rocks that flow down

Magma

rocks inside the volcano

Ground Shaking

most important cause of earthquake damage, created by SEISMIC earth movements

Liquefaction

cause soil to lose strength and flow

Earthquake Induced Ground Subsidence

large portion of land to sink / rocks to deform, also rocks breaking under stress

Earthquake Induced Landslide

movement of rocks, earths debris and slopes / collapse of the materials under a hill slope and the force of gravity

Tsunami

"seismic sea waves", caused by underwater volcanic eruption, earthquake, or coastal landslide

Richter Scale

measures the earthquake's magnitude

Seismograph

records the motion of the ground during an earthquake

Seismometer

internal part of seismograph, a mass or pendulum mounted to a spring

Magnitude

energy released of the earthquake

Intensity

strength of shaking during the earthquake