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HOW TECHONIC PLATES MOVE

🌍 What Are Tectonic Plates? Tectonic plates are massive slabs of Earth's lithosphere (the rigid outer layer of the Earth) that fit together like a puzzle and float on the semi-fluid asthenosphere beneath them. There are about 15 major plates, including the Pacific Plate, North American Plate, Eurasian Plate, etc. 🔄 How Do Tectonic Plates Move? Tectonic plates move slowly — usually just a few centimeters per year — due to convection currents in the hot, flowing mantle beneath them. These movements shape Earth's surface over time. ⚙️ Types of Plate Boundaries and What Happens There Convergent Boundaries (Plates move toward each other) One plate may subduct (sink) beneath the other. Creates mountains, deep ocean trenches, and volcanoes. 🌋 Example: The Andes Mountains, the Himalayas Divergent Boundaries (Plates move apart) Magma rises to fill the gap, forming new crust. Found at mid-ocean ridges or rift valleys. 🌊 Example: Mid-Atlantic Ridge, East African Rift Transf...
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HOW TSUMANIS ARE CAUSED

sunamis are caused by sudden movements of large volumes of water, typically in the ocean. These movements are most often triggered by geologic events that rapidly displace the sea floor. 🌊 Main Causes of Tsunamis 1. Underwater Earthquakes Most common cause When tectonic plates shift suddenly at a fault line (especially in subduction zones), the seafloor can move vertically. This displaces huge amounts of water and sends waves outward in all directions. 🔹 Example: 2004 Indian Ocean Tsunami Caused by a massive 9.1 earthquake off the coast of Sumatra. 2. Volcanic Eruptions Explosive eruptions can collapse part of a volcano or create pyroclastic flows that push into the sea. These displace water and can generate tsunamis. 🔹 Example: Krakatoa (1883) — one of the deadliest volcanic tsunamis in history. 3. Landslides Can happen underwater (submarine landslides) or on land (coastal cliffs falling into the sea). The sudden mass of earth moving into water creates powerful waves. 🔹 ...
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HOW EARTHQUAKES FORM

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Earthquakes are formed when rocks in the Earth’s crust suddenly break or slip along a fault line, releasing a burst of energy. This energy travels through the ground as seismic waves, which we feel as shaking. 🌍 Step-by-Step: How Earthquakes Happen 1. Tectonic Plates Are Always Moving Earth’s surface is made of massive pieces called tectonic plates. These plates move slowly but constantly, pressing against, pulling away, or sliding past each other. 2. Stress Builds Up As the plates move, they sometimes get stuck along faults (cracks in Earth’s crust). When they can’t move freely, stress builds up over time. 3. Sudden Release = Earthquake Eventually, the stress becomes too great. The rocks snap or slip suddenly, releasing energy. This energy radiates out from the focus (the exact point underground where the break happened). 4. Seismic Waves Shake the Ground These waves travel through the Earth, causing the shaking we feel. The epicenter is the point directly above the focus on...
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