Locating The Epicenter Of An Earthquake Worksheet Locating the Epicenter of an Earthquake Introduction The epicenter is the point on Earth s surface directly above an earthquake Seismic stations detect earthquakes by the tracings made on seismographs Tracings made at three separate seismic stations are needed to locate an earthquake epicenter
Earthquakes Living Lab Finding Epicenters and Measuring Magnitudes Activity Worksheet 1 Finding Epicenters and Measuring Magnitudes Worksheet Objective To use seismic data and an interactive simulation to triangulate the location and measure the magnitude of an earthquake Materials Work in pairs sharing one In this activity students use an online simulation Virtual Earthquake that is accessible through the Earthquakes Living Lab interface to locate the epicenter of an earthquake by making simple measurement on three seismograms recordings of an earthquake s seismic waves detected by instruments seismographs far away from the
Locating The Epicenter Of An Earthquake Worksheet
Locating The Epicenter Of An Earthquake Worksheet
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Locating The Epicenter Of An Earthquake Worksheet Answer Key
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Finding The Epicenter Worksheet
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To find the epicenter you need to know the arrival times and speeds of the P and S waves The only other items you need are a calculator and a compass 1 The equation for finding the epicenter To calculate the distance to the epicenter for each station you will use the equation Distance Rate Time Locate the epicenter of an earthquake using information from three seismometers Materials Drawing compasses one per student MULTIMEDIA FILE Generation of Tsunami by Subduction Zone Earthquake on the ATEP Website http www aktsunami multimedia STUDENT WORKSHEET Locating the
Further Questions The location of the seismometer to first record the earthquake s P waves The location of the seismometer to first record the earthquake s S waves The place deep in Earth s crust where the earthquake Overview During an earthquake seismic waves are sent all over the globe Though they may weaken with distance seismographs are sensitive enough to still detect these waves In order to determine the location of an earthquake epicenter seismographs from at least three different places are needed for a particular event
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Locating The Epicenter Of An Earthquake
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Earth Science Regents Locating An Epicenter Answer Key Fill Online
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Locating An Earthquake Epicenter Worksheet Examples Resume Zac Sheet
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The point where the three circles intersect is the epicenter of the earthquake This technique is called trilateration Image from IRIS Check the scale on your map It should look something like a piece of a ruler All maps are different On your map one centimeter could be equal to 100 kilometers or something like that Determine the distance of an epicenter from a seismic station using travel time curves Locate the epicenter of an earthquake by triangulation and Calculate the time of origin of an earthquake based on seismic data
Part II Using the distance to epicenter information above the map and the map scale plot the location of each earthquake This can be done by drawing circles with the appropriate radius around the cities of record and identifying where the circles intersect Be careful to complete one earthquake entirely before moving on to the next Finding the Epicenter One seismogram indicates the distance to the epicenter This is determined by the P and S wave arrival times If a quake is near the seismograph the S waves arrive shortly after the P waves If a quake is far from the seismograph the P waves arrive long before the S waves
Locating The Epicenter Of An Earthquake Worksheet Worksheet
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Locating An Epicenter Worksheet
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Locating The Epicenter Of An Earthquake Worksheet - Instructions Choose an answer and hit next You will receive your score and answers at the end question 1 of 3 Which of the following describes the epicenter of an earthquake The