The Earthquake Data Portal API provides event information in both SOAP and REST-style services. For SOAP, the information is provided in QuakeML format. For REST, information is in either QuakeML or JSON formats. Users can do Event Searches, review Latest Events and look at Event Details. Data on seismic waveforms and their velocity are also provided, including the ability to predict arrival times and locations after they have been detected. The API will identify the data providers within the Seismolink network.
It used to be you could change anything layered on top of a map, but you couldn't change the underlying map itself. Now you have several options for changing the color palette and the visibility of different objects that make up your base map. The options vary on the amount you can customize and how much work is required. But all three of these APIs can have you map scripting with style.
If you enjoy creating fun, interactive maps, you'll get lost in the latest functionality from UMapper (our UMapper mashup profile). With it, you can include any image--even one that isn't a map--in its Flash viewer.