Threat of Flank Collapse at Kilauea Volcano, Hawaii: Case Example
Skills and concepts that students must have mastered
How the activity is situated in the course
Content/concepts goals for this activity
Higher order thinking skills goals for this activity
Other skills goals for this activity
Description and Teaching Materials
The case example is written with the assumption that students have read Cervelli's article (listed below), which focuses on slow slip events ("silent earthquakes"). The article paints a very clear picture of what volcano flank collapse is, what the catastrophic consequences are, and what the geologic evidence is for multiple flank collapses in the Hawaiian volcanic chain in the geologic past. The preparatory homework assignment is a simple set of questions to make sure that students read the article carefully. If students have not read this article, the instructor would need to provide a bit of background in class before students tackled the case example.
The beginning of the case example itself presents students with data on "normal" earthquakes occurring between 1971 and 1999. Students then combine information on surface faults, locations of earthquake hypocenters, and composite focal mechanism solutions to synthesize a movement picture for the south flank and defend their analyses with evidence.
Assignment for Kilauea flank collapse case example (Microsoft Word 2007 (.docx) 879kB May9 12)
Teaching Notes and Tips
References and Resources
Cervelli, Peter, 2004, The threat of silent earthquakes: Scientific American, March 2004, p. 86-91.
Poland, Michael, Miklius Asta, Wilson, David, Okubo, Paul, Montgomery-Brown, Emily, Segall, Paul, Brooks, Benjamin, Foster, James, Wolfe, Cecily, Syracuse, Ellen, and Thurber, Clifford, 2010, Slow slip events at Kilauea Volcano: EOS, v. 91, no. 13, 30 March 2010, p. 118-119.
Gillard, Dominique, Wyss, Max, Okubo, Paul, 1996, Type of faulting and orientation of stress and strain as a function of space and time in Kilauea's south flank, Hawaii: JGR, v. 101, no, B7, p. 16,025-16,042.