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How do convection currents cause earthquakes and volcanoes?

How do convection currents cause earthquakes and volcanoes?

Heat rising and falling inside the mantle creates convection currents generated by radioactive decay in the core. The convection currents move the plates. Plate tectonics cause earthquakes and volcanoes . The point where two plates meet is called a plate boundary .

How do convection currents affect volcanoes?

Convection current movements create a push and pull effect, creating the volcanic trenches, which are formed when two plates collide. If the magma continues to rise towards the surface of the gap, the formation of another volcano may take place.

How convection currents in the mantle lead to both earthquakes and active volcanic activity?

The core heats up the magma and causes a convection current. When magma comes to the top of the mantle, it pushes against tectonic plates, which are huge slabs of rock which the crust rests on. The movement of the plates can lead to volcanic eruptions, earthquakes, tsunamis and mountain-range formation.

How do convection currents work in the earth?

Magma in the Earth’s mantle moves in convection currents. The hot core heats the material above it, causing it to rise toward the crust, where it cools. The heat comes from the intense pressure on the rock, combined with the energy released from natural radioactive decay of elements.

What 3 places on earth do convection currents occur?

Convection currents occur within: the atmosphere – wind. the hydrosphere – ocean currents.

Where do convection currents occur in the mantle?

Convection currents Convection currents are the movement of liquids and solids as their temperature rise. It happens in the mantle where the magma are, and it causes rocks to rise up, cools, then go back to the bottom. The Asthenosphere is another name of the part where the convection current takes place.

How does convection affect the movement of tectonic plates?

Convection currents drive the movement of Earth’s rigid tectonic plates in the planet’s fluid molten mantle. In places where convection currents rise up towards the crust’s surface, tectonic plates move away from each other in a process known as seafloor spreading (Fig.

Subduction zones Convection currents and continental drift Ahmed Elgamal Shaking our world It where a convergent boundary take place, When two tectonic plates meet, one may slide underneath the other, that zone is called a subduction zone. Convection currents Convection currents are the movement of liquids and solids as their temperature rise.

Why are convection currents important to the Earth?

The constantly circulating cells of the cool and hot molten rock are considered to help in heating the surface. Also, some Geologists believe that the convection currents within the earth are the contributing cause for the earthquakes, volcano eruption, and continental drift.