You have been hired to evaluate the volcanic hazards associated with a dormant volcano.  The volcano has no historically recorded eruptions, but is showing signs of stirring to life

You have been hired to evaluate the volcanic hazards associated with a dormant volcano.  The volcano has no historically recorded eruptions, but is showing signs of stirring to life.  Assuming that future volcanic activity would be similar to the prehistoric eruptions, what information would you seek out in the field as a part of your evaluation, and why would you collect this information?