Issue: Aggregating

Current Situation:

• Web site A: fault information
• Web site B: electromagnetic observations
• Web site C: hydro and gas measurements
• Web sites D, E, F: earthquakes data from various networks
• Web services G, H, I ... : map, source, propagation, acceleration, site response, etc. services
• Web sites X, Y, Z ... : gov't emergency authorities
• Want to aggregate data to (for R&D or realtime alerts):
  • compare network locations and compute new ones
  • examine correlations of geophysical observations
  • interface with authorities re: events and risks

Issues:

• Different databases, attributes, locations, services
• Can do now by building specialized systems
• Neither flexible nor extensible