activity 4 locating an earthquake epicenter answer key

Use of the TeachEngineering digital library and this website constitutes acceptance of our Terms of Use and Privacy Policy. The simulation renders three circles on a map and directs students to find the epicenter. It travels faster than the same earthquake's S wave (almost double the speed) and is similar to sound waves. S waves. The point where your ruler crosses the middle line on the chart marks the magnitude (strength) of the earthquake. Triangulation and Magnitude: Student pairs complete the worksheet, which includes following a tutorial/simulation accessed through the Earthquakes Living Lab. =Cv :~4yrXP 62{_,*Uq/O-oUNBr-$y~:G},#3e^CS6U*_zVGY7ZNUWk2f?? {%!,"{u5E&OOqA_"/uxn-kx+Vz*EQb)Q By looking at the time between the arrivals of the P- and S-waves, one can determine the distance to the earthquake from that station, with longer time intervals indicating longer distance. Students learn about factors that engineers take into consideration when designing buildings for earthquake-prone regions. ACTIVITY 4.2B Locating an Earthquake Figure 4.5 shows seismograms for the same earthquake recorded at three locations - New York, Nome, Alaska, and Mexico City. longer or shorter). Last updated November 26, 2013. This investigation is considered generally safe to do with students. Reading Strategy. Then from the same recordings they determine the earthquake's magnitude, an estimate of the amount of energy released during the earthquake. If you draw a circle on a map around three different seismographs where the radius of each is the distance from that station to the earthquake, the intersection of those three circles is the epicenter. Several thousand seismographs exist at locations around the planet, continuously measuring abnormalities in the Earth's movement. How Can I Locate the Earthquake Epicenter? | Michigan Technological Some places are more prone to earthquakes than others. If a quake is far from the seismograph, the P-waves arrive long before the S-waves. 3. epicenter - the point on Earth's surface directly above the focus, or origin, of an earthquake. 0000055643 00000 n How can you locate an earthquake's epicenter? Considered best for measuring small earthquakes (3.5 M or less). 61 0 obj <> endobj xref Now on the main page of the Earthquakes Living Lab website (see Figure 2), note the featuring of four active seismic areas and the mapping of real-time and current data from earthquakes happening around the world. PS: We do not share personal information or emails with anyone. Dochub is the best editor for changing your documents online. Locating the Epicenter of an Earthquake - SE Asia a foldable activity, slide presentation to guide reading, and an answer key! 12), Analyze and interpret data about natural hazards using direct and indirect evidence Thus technology use varies from region to region and over time. Hand out the worksheets to the groups and direct them to read through the instructions. earthquakes. hbbd``b`$C`q9 X_$_g`bdxc`X The arrival of seismic waves will be recognized by an increase in amplitude look for a pattern change as lines get taller and more closely spaced (ex.

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