Find the latest 10 questions from OpenQuake users here. They all relate to the OpenQuake Engine, because it is the only tool currently mature enough to be used.
You can subscribe to the group as well, and ask other users to help you out. GEM's IT team always follows all questions and jumps in whenever needed and possible.
Take a look at the group and its members. You can email the group at: firstname.lastname@example.org
Add your questions and help us improve OpenQuake together.
If the user group doesn't work, you can always contact us at email@example.com.
If you have questions about GEM... take a look at our frequently asked questions!