https://www.khanacademy.org/science/ka-class-8-science/x8b7d83a58c8e2394:some-natural-phenomena/x8b7d83a58c8e2394:earthquake/v/earthquake 2026-04-01T04:23:07.929128474Z Earthquake Why does the ground suddenly shake? In this video, we travel beneath our feet to uncover what really causes earthquakes. You’ll learn: ✅ The four layers of the Earth — crust, mantle, outer core, inner core ✅ How convection currents deep in the mantle move tectonic plates ✅ What happens when those plates get stuck and release energy? ✅ How does this energy spread and where the maximum impact is felt? ✅ How are earthquakes measured? By the end, you’ll see how something happening thousands of kilometers below can shake entire cities above! Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Earthquake Why does the ground suddenly shake? In this video, we travel beneath our feet to uncover what really causes earthquakes. You’ll learn: ✅ The four layers of the Earth — crust, mantle, outer core, inner core ✅ How convection currents deep in the mantle move tectonic plates ✅ What happens when those plates get stuck and release energy? ✅ How does this energy spread and where the maximum impact is felt? ✅ How are earthquakes measured? By the end, you’ll see how something happening thousands of kilometers below can shake entire cities above! https://cdn.kastatic.org/ka-youtube-converted/VlhlhipAH_o.mp4/VlhlhipAH_o.mp4 508 Earthquake https://www.khanacademy.org/science/als-k-to-12-science/x46c2fc9f8e023990:3rd-quarter/x46c2fc9f8e023990:using-models-to-explain-how-fault-movements-generate-earthquakes/a/how-are-earthquakes-measured 2025-03-07T16:50:49.734868403Z How Are Earthquakes Measured? article https://www.khanacademy.org/science/telangana-class-8-science/x17f7017799a605d2:some-natural-phenomena/x17f7017799a605d2:earthquake/e/earthquake 2026-04-08T00:54:09.631945657Z Earthquake This exercise on Earthquakes for Class 8 Science (Chapter 15: Some Natural Phenomena) covers definition, causes, effects, seismic zones in India, Richter scale, prediction myths, safety measures, and quake-resistant structures.It helps students understand earthquakes scientifically and learn how to stay safe. Yajurva Joshi exercise