To become a member, send an e-mail with three choices of username to .

If you do not have an e-mail address from an educational institution or other entity engaged in geodynamics or geophysics research, please specify the name of your institution or your professional affiliation in geophysics, in your request e-mail. For example, if you e-mail us using a gmail.com, yahoo.com, or other free e-mail service, you must provide your home institution's name.

Once we receive and process your request, you will be sent an automated e-mail with a temporary password and instructions on logging in and obtaining your permanent password.

By requesting membership, you agree that you understand and will abide by CIG's membership policies:

• Member accounts are for CIG- and/or geophysical science-related business only. CIG accounts used for unauthorized and/or illegal activity are subject to immediate removal.
• CIG reserves the right to suspend any subscription that no longer has a valid e-mail address.