In order to solve the mystery of what happened to the rumbleometer during the recent earthquakes at Axial Volcano, you will conduct the following four activities:

1) Locate an earthquake epicenter - this will tell you where the action was and where to take the ship with ROPOS

2) Record observations during a ROPOS dive - you will look for clues on the seafloor in the area around the rumbleometer

3) Create before-and-after cross-sections of the seafloor - this mapping exercise will show if there have been any changes in seafloor depth since the previous survey was done before the earthquakes

4) Analyze data from the rumbleometer - pressure and temperature data recorded by the instrument will give important information about what happened