Pangaea was a supercontinent that existed approximately 200 million years ago. It was formed when all of the Earth's landmasses collided together into one giant continent. Pangaea began to break up approximately 180 million years ago, and the continents continue to drift apart to this day.
Plate Tectonics
Plate tectonics is the theory that the Earth's crust is made up of a number of large plates that are constantly moving. These plates can move towards each other, away from each other, or slide past each other. The movement of the plates is caused by the convection currents in the Earth's mantle.
Plate tectonics is responsible for many of the Earth's geological features, including mountains, volcanoes, and earthquakes. It is also responsible for the formation of new ocean crust and the destruction of old ocean crust.
Active volcanoes
An active volcano is a volcano that has erupted in the past 10,000 years or is expected to erupt in the future. There are approximately 1,500 active volcanoes on Earth.
Active volcanoes are found at plate boundaries, where the plates are moving towards each other, away from each other, or sliding past each other. The movement of the plates can cause magma to rise to the surface and erupt.
Primary waves
Primary waves, also known as P waves, are a type of seismic wave that travels through the Earth's interior. P waves are the fastest type of seismic wave and can travel through solids, liquids, and gases.
P waves are caused by the sudden compression and expansion of the Earth's crust. They are the first type of seismic wave to arrive at a seismograph station after an earthquake.
Surface waves
Surface waves are a type of seismic wave that travels along the Earth's surface. Surface waves are the slowest type of seismic wave and can cause the ground to shake and roll.
Surface waves are caused by the movement of the Earth's crust during an earthquake. They are the last type of seismic wave to arrive at a seismograph station after an earthquake.
Richter scale
The Richter scale is a logarithmic scale that is used to measure the magnitude of earthquakes. The Richter scale was developed by Charles Richter in 1935.
The Richter scale is based on the amplitude of the largest seismic wave recorded on a seismograph station. The amplitude of the wave is a measure of its strength.
The Richter scale is a logarithmic scale, which means that each increase of one magnitude unit represents a tenfold increase in the amplitude of the seismic wave.
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Pangaea
Pangaea was a supercontinent that existed approximately 200 million years ago. It was formed when all of the Earth's landmasses collided together into one giant continent. Pangaea began to break up approximately 180 million years ago, and the continents continue to drift apart to this day.
Plate Tectonics
Plate tectonics is the theory that the Earth's crust is made up of a number of large plates that are constantly moving. These plates can move towards each other, away from each other, or slide past each other. The movement of the plates is caused by the convection currents in the Earth's mantle.
Plate tectonics is responsible for many of the Earth's geological features, including mountains, volcanoes, and earthquakes. It is also responsible for the formation of new ocean crust and the destruction of old ocean crust.
Active volcanoes
An active volcano is a volcano that has erupted in the past 10,000 years or is expected to erupt in the future. There are approximately 1,500 active volcanoes on Earth.
Active volcanoes are found at plate boundaries, where the plates are moving towards each other, away from each other, or sliding past each other. The movement of the plates can cause magma to rise to the surface and erupt.
Primary waves
Primary waves, also known as P waves, are a type of seismic wave that travels through the Earth's interior. P waves are the fastest type of seismic wave and can travel through solids, liquids, and gases.
P waves are caused by the sudden compression and expansion of the Earth's crust. They are the first type of seismic wave to arrive at a seismograph station after an earthquake.
Surface waves
Surface waves are a type of seismic wave that travels along the Earth's surface. Surface waves are the slowest type of seismic wave and can cause the ground to shake and roll.
Surface waves are caused by the movement of the Earth's crust during an earthquake. They are the last type of seismic wave to arrive at a seismograph station after an earthquake.
Richter scale
The Richter scale is a logarithmic scale that is used to measure the magnitude of earthquakes. The Richter scale was developed by Charles Richter in 1935.
The Richter scale is based on the amplitude of the largest seismic wave recorded on a seismograph station. The amplitude of the wave is a measure of its strength.
The Richter scale is a logarithmic scale, which means that each increase of one magnitude unit represents a tenfold increase in the amplitude of the seismic wave.