In this free science game, players locate an earthquake's epicenter! No data point selected. This effect can be caused by earthquake shaking.The shortest path between two points on the surface of a sphere lies along a great circle. If you continue to use this site we will assume that you are happy with it. Shaking at a site may be increased, or amplified, by focusing of seismic energy caused by the materials in basins or by surface topography such as mountains.The wavefront is the instantaneous boundary between the seismic waves in the earth material, and the material that the seismic energy has not yet reached. Aftershocks are earthquakes that follow the largest shock of an earthquake sequence. an interactive map tool that enables students and scientists to better understand the relationships between geophysical and geological processes, structures, and measurements with high-precision GPS data. Cool Earthquake Facts fascinating earthquake facts Earthquakes: Seismic Destruction I just love how it illustrates the effects of earthquakes!If you’re looking for other great activities to illustrate earthquakes other than this earthquake simulation, check out my blog post where students play with graham crackers and frosting to demonstrate plate movement called In this activity, I use small rectangle Styrofoam to represent buildings sitting on two different types of soil – one being soil and another being sand. This animation shows a reverse fault which is a steeper-angle fault, but it moves the same way.Strike-slip faults are vertical (or nearly vertical) fractures where the blocks have mostly moved horizontally. If students shake “lightly” then both foundations are likely okay. They are smaller than the mainshock and within 1-2 fault lengths distance from the mainshock fault. Working in pairs, students think like engineers to apply what they have learned to sketches of their own building designs intended to withstand strong-magnitude earthquakes. I like to follow up on this activity asking why people choose to build their houses along beaches.You can find these great activities and more in my Teachers Pay Teachers store in my Want more valuable teaching tips and other ah-mazing perks, such as discounts, giveaways, flash freebies, dollar deals, and so much more? The goal of this project is to educate people about seismology and increase the awareness of … A graben is a down-dropped block of the earth's crust resulting from extension, or pulling, of the crust.Aftershocks are earthquakes that follow the largest shock of an earthquake sequence.
Earthquake Animations. The idea is that a fault is stuck until the strain accumulated in the rock on either side of the fault has overcome the friction making it stick. If the rock mass above an inclined fault moves down, the fault is termed normal, whereas if the rock above the fault moves up, the fault is termed a Reverse fault.Liquefaction is a process by which water-saturated sediment temporarily loses strength and acts like a fluid... like when you wiggle your toes in the wet sand near the water at the beach. The shadow zone results from S waves (not shown in animation) being stopped entirely by the liquid core and P waves being bent (refracted) by the liquid core.Normal, or Dip-slip, faults are inclined fractures where the blocks have mostly shifted vertically. Students typically find that the soil is definitely better than the sand. Or will triangulation get the better of you? I just love how it illustrates the effects of earthquakes! A student doing an experiment in the rock physics lab. Students learn how engineers design and construct buildings to withstand earthquake damage by building their own model structures using toothpicks and marshmallows.
Earthquake Simulation One of my favorite activities to simulate with students when discussing the slow and fast changes of the earth is this earthquake simulation.
Can you ride the seismic waves? Aftershocks can continue over a period of weeks, months, or years. In general, the larger the mainshock, the larger and more numerous the aftershocks, and the longer they will continue.Elastic rebound is what happens to the crustal material on either side of a fault during an earthquake. If the block opposite an observer looking across the fault moves to the right, the slip style is termed right-lateral; if the block moves to the left, the motion is termed left-lateral.The shadow zone is the area of the earth from angular distances of 104 to 140 degrees that, for a given earthquake, that does not receive any direct P waves.
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