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Earhtquakes
| Question | Answer |
|---|---|
| What is the Ring Of Fire? | An area surrounding the Pacific ocean where many volcanoes and earthquakes happen. |
| What are Plate Tectonics? | Tectonic plates are underground plates that can create mountains or cause earthquakes by moving. |
| What is the Richter Scale? | It's a scale that measures how bad earthquakes are. |
| What is an Epicenter? | The point on the earth's surface directly above the focus. |
| What is a P-Wave (Primary)? | Fastest wave moves through solid and liquid layers considered a body wave. |
| What is an S-Wave (Secondary)? | Slower than P-wave can only move through crust and mantle a body wave, moves particles of rock side to side or up and down. |
| What are Surface Waves? | Travels only through the crust, Comes after the P and S waves, almost entirely responsible for the damage and destruction of earthquakes, There's the Rayleigh wave (circular) and the Love wave (back and forth) |
| What does Magnitude mean? | The numbers on the Richter scale that tells you how bad earthquakes are 1 being the least effective and 8 or higher being the most effective. |
| What is a Seismograph? | An instrument that measures and records details of earthquakes, determines the duration and strength of an earthquake. |
| What is a Seismogram? | The record made by the Seismograph. |
| What is an Aftershock? | Normally pretty small, occurs after the main event. |
| What is a Tsunami? | A series of powerful waves made by earthquakes or landslides under the ocean |
| What is a Tsunami 2? | Can travel at an average of 450 mph in open ocean |
| What is a Tsunami 3? | Very destructive to coastal areas. |
| What is Stress on Rocks? | Pressure put on rocks there are three different types. |
| What is Compression? | Rocks move together. |
| What is Tension? | Rocks move away from each other. |
| What is Shearing? | Rocks slide past each other. |
| What is an Earthquake? | happens when pressure built up along the fault line becomes so great that rocks on either side of the fault suddenly rip apart. |
| What is an Earthquake 2? | Energy radiates out of an earthquake called seismic waves |
| What is an Earthquake 3? | This energy results in violent shaking and massive destruction. |
| What is an Earthquake 4? | Smaller aftershocks occur after the main event. |
| What is a Normal Fault? | Caused by tension rocks diverge from each other hanging wall moves downward relative to the other wall known as the foot wall. |
| What is a reverse fault? | Caused by compression rocks converge together. the foot wall moves downward relative to the other wall known as the hanging wall. |
| What is a Strike-Slip Fault? | Caused by shearing rocks transform (slip) by each other rocks move mainly in a horizontal line parallel to a thing known as the fault line. |
| What is a Hanging Wall? | The one that's on the right and in a normal fault goes under the foot wall and in a reverse fault it goes on top of the foot wall. |
| What is a Foot Wall? | The one that's on the left and in a Normal fault goes on top of the hanging wall and in a reverse fault it goes under the hanging wall. |
| What is the Focus? | the point in the earth where the earthquake began. |
| What are Seismic Waves? | Fastest wave moves through solid and liquid layers considered a body wave. |
| What are Seismic Waves 2? | Slower than P-wave can only move through crust and mantle a body wave, moves particles of rock side to side or up and down. |
| What are Seismic Waves 3? | Surfaces waves can only go through the crust comes after the P and S waves causes most of the destruction of the earthquake there's two types the Rayleigh wave (circle thing) and the Love wave (back and forth) |
| What is Seismology? | A type of science where scientists study earthquakes |
| What is a Fault Line? | Where the crack on the surface appears of the fault. |
| What is a Transform Boundary? | A plate boundary where the plates slide past each other. |
| What is a Subduction Zone? | Where there's two tectonic plates and they crash in to each other and the weaker one subducts under the stronger one. |
| What is the Mercali Scale? | It measures how bad the earthquake was like the Richter Scale but it uses Roman Numerals and different discriptions. |