What are plate tectonics Bill Nye?
Bill Nye, the Science Guy: Plate Tectonics The areas in which the tectonics spread apart is where volcanoes form. Conversely, the areas in which the tectonics come together is where mountains form.
Where does movement in the Earth’s crust occur during Earthquake?
Earthquakes occur along fault lines, cracks in Earth’s crust where tectonic plates meet. They occur where plates are subducting, spreading, slipping, or colliding. As the plates grind together, they get stuck and pressure builds up. Finally, the pressure between the plates is so great that they break loose.
What happens to the earth’s crust during an Earthquake?
The movement of tectonic plates causes stress to build up on the boundaries of and within the plates. It deforms the crust through a process of crushing, stretching or uplifting. As the stress exceeds the strength of the rock, the rock breaks.
What are 3 things you should put in an Earthquake kit Bill Nye?
List three items that you should have in an Earthquake kit. bottled water, flashlight, first aid kit.
What is an earthquake and how do earthquakes generally occur?
These plates are always moving apart, bumping, or sliding past each other at about the same speed that your fingernails grow. Earthquakes usually occur where two plates are running into each other or sliding past each other. An image of the world’s major plates and their boundaries.
What happens when Earth’s crust move?
At the “seams” where tectonic plates come in contact, the crustal rocks may grind violently against each other, causing earthquakes and volcano eruptions. The relatively fast movement of the tectonic plates under California explains the frequent earthquakes that occur there.
Do earthquakes occur in the crust?
Earthquakes occur in the crust or upper mantle, which ranges from the earth’s surface to about 800 kilometers deep (about 500 miles).
Where the plates move apart we get Bill Nye?
The plates are floating on Earth’s crust / mantle / core (circle one). Scientists believed that at one time, all the plates of Earth’s crust were one piece called Pangaea, which means “whole Earth”. Where the tectonic plates are spreading apart, we get volcanoes / lakes / mountains (circle one).
When plates of the Earth’s crust lift or tilt __ are formed?
When plates of the earth’s crust lift or tilt, mountains are formed. 10.
How does the movement of the Earth’s crust cause an earthquake?
Most earthquakes are caused by the movement of large sections of the Earth’s crust, called plates. The place where two plates meet is called a fault. Faults look like large cracks in the ground. If the two plates move in different directions, they build up energy at the fault line.
When does the ground move after an earthquake?
This is the case for portions of the Hayward fault, Calaveras fault, and San Andreas fault. Measureable motions above the ‘background’ often occur days, months, or even years after an earthquake occurs, even though the causative faults are stuck. This usually happens after magnitude > 7 earthquakes.
What happens when a fault is stuck during an earthquake?
If these faults are stuck, then there may be no motion across them for tens to hundreds of years, during which time they build up stress until an earthquake occurs. The earthquake relieves the stress, the fault is stuck again, and the cycle of stress buildup and release begins anew.
How is the energy of an earthquake measured?
How Do We Measure Earthquakes? The energy from an earthquake travels through Earth in vibrations called seismic waves. Scientists can measure these seismic waves on instruments called seismometer. A seismometer detects seismic waves below the instrument and records them as a series of zig-zags.