proposed earthquake prediction registry forms and fields
predictor registration form
1. username
2. email address
3. email address verify
4. make email public?
5. password
6. password verify
prediction form
1. username
2. password
3. prediction parameter #1 - timeframe 
  a. starting date
  b. starting time
  c. ending date
  d. ending time
  e. time zone
4. prediction parameter #2 - geographical location (select from)
  a. circle
    i. centerpoint longitude
    ii. centerpoint latitude
    iii. distance
    iv. distance units
  b. doughnut
    i. centerpoint longitude
    ii. centerpoint latitude
    iii. distance inside
    iv. distance outside
    v. distance unit
  c. line 
    i. point 1 longitude
    ii. point 1 latitude
    iii. point 2 longitude
    iv. point 2 latitude
    v. distance from line
    vi. distance units
  d. polyline
    i. point n longitude
    ii. point n latitude
    iii. distance from line
    iv. distance units
  e. polygon
    i. point n longitude
    ii. point n latitude
5. prediction parameter #3 - magnitude
  a. minimum magnitude
  b. maximum magnitude