Describing a Recent Seismic Event
Following a large or newworthy earthquake it is common for many geoscientists to be contacted by the medial. in this role playing activity, using the May 12, 2008 - Sichuan Earthquake as an example students must make an assessment of the earthquake in order to become prepared to discuss the event with the news media.
Resource 1 Related Resources Animations Describing a Recent Seismic Event 1h Advanced Resource Files Student Worksheet Download All 8MB In this roll play activity students are preparing to be interviewed by the local media about a recent newsworthy quake. The student worksheet walks students through a series of questions to help them prepare. Answering the questions requires making use of the event specific details and the background information provided. However, all answers must be combined with a broader geologic understanding to truly prepare. The activity as provided uses the May 12, 2008 - Sichuan Earthquake as an example. However, the activity could be updated by providing students with similar information from a more recent quake. Author: Seth Stein, Northwestern University (seth@earth.northwestern.edu) Objectives: Students will be able to: Calculate the seismic moment for a quake Predict the rupture length (km) and average displacement (m) and the downdip dimension (fault width) Compare and contrast their predictions with aftershock paterns and body wave modeling Determine the type of fault a quake occured on and its tectonic cause Related Animations Magnitude Explained: Moment Magnitude vs. Richter Scale The "moment magnitude" scale has replaced the Richter scale for large earthquakes. Scientists have developed far-more sensitive seismometers that, with faster computers, have enabled them to record & interpret a broader spectrum of seismic signals than was possible in the 1930's, when the Richter magnitude was developed. Find out what scientists learn from seismograms. Animation Novice