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This demonstration uses an "earthquake machine" constructed from bricks, sand paper, and a winch, to simulate the buildup of elastic strain energy prior to a seismic event and the release of that energy ...
ConcepTest: Earthquake Hazards
If you lived in a city located 20 km from the epicenter of a magnitude 6.7 earthquake, which of the following would you be most likely to experience? a) ground shaking b) landslides c) fault rupture d) tsunami e) ...
ConcepTest: Global Earthquake Distribution
Which of the maps below is the best representation of the distribution of earthquakes of magnitude 7 or larger? a. b. c. d.
ConcepTest: Global Earthquake Occurrence #2
Which of the locations on the world map below is most likely to experience a deep focus earthquake? a. b. c. d.
ConcepTest: Global Earthquake Occurrence #1
Which of the locations on the world map below is most likely to experience a magnitude 6 or greater earthquake? a. b. c. d.
ConcepTest: Global Earthquake Occurrence #3
Which of the locations on the world map below is least likely to experience an earthquake? a. South coast of Australia b. Hawaiian Island chain c. West coast of South America d. Mid-Atlantic oceanic ridge
ConcepTest: Earthquake Location and Magnitude
Two active faults are present at different sites along the west coast of North America. The rate of plate motion adjacent to location X is 2 cm/year. The rate of plate motion adjacent to location Y is 5 cm/year. A ...
Back-of-the-Envelope Calculations: Energy Released in an Earthquake
Barb Tewksbury, Hamilton College
Question A magnitude 8.5 earthquake (such as the 1964 Good Friday earthquake in Alaska) releases about 1x1018 joules of energy. The atomic bomb exploded over Hiroshima released about 1.5x1013 joules of energy. How ...
Topics for Discussion with the Earthquake Demonstration
The USGS website on the Earthquake Model presents the following three hypotheses that can be explored with the demonstration: Hypothesis 1: Earthquakes are periodic (in other words, all of the same slip, and all ...
How to Set Up the Earthquake Demonstration
Materials needed for the earthquake demonstration are as follows: plywood (122 cm x 30 cm) 2 bricks ~30 cm of rubber surgical tubing (or bungee cord) fine to medium grit sand paper, ~96 cm x 10 cm ~80 cm of strong ...