SO461 Lab, Spring 2013
Lab: Earthquakes at Convergent Margins
Work in groups of 2 on this lab to collect data and figures.
For your assigned plate boundary, fill out the following table and collect graphics to back up your conclusions. Place them in a PowerPoint, which you will brief at next week's lab.
| Trench Name/Location | |
| Trench Dimensions (depth, width) | |
| Volcanoes, number and elevations | |
| Dip & Depth Benioff Zone | |
| Earthquake magnitudes | |
| Earthquake Distribution | |
| Convergence Rate and direction | |
| Age Subducting Crust | |
| Characteristics of overriding plate | |
| Sediment thickness in trench and forearc basin |
| Location | Zone | Students |
| Aleutians, | W155 and W175 | |
| Andes | S8 and S20 | |
| S20 and S29. | ||
| Central America | N12 and N17. | |
| Indonesia | E97 and E113 | |
| Japan | N35 and N45. | |
| N45 and N55 | ||
| Mariana Trench | N10 and N15 | |
| N15 and N20 | ||
| Tonga-Kermadoc Trench | S10 and S20 |
The MICRODEM help file has a topic "Subduction zone features" that links to directions on how to display the various features.