Usage guidelines for EarthScope DMC services

Guidelines for using web services

Web services hosted at the EarthScope DMC ( should be used with following limitations:

  • Users should limit usage to no more than 5 concurrent connections to any combination of web services.
  • Users should limit their clients to no more than 10 connections per second regardless of the return capability of the service interfaces.

The DMC’s network equipment will deny connections (via a TCP RESET) when the limits have been exceeded.

NOTE: In particular, polling for real-time continuous time series data is not allowed. For continuous, near real-time data please use our streaming service.

Guidelines for using the real time SeedLink streaming service

Users of the DMC’s SeedLink streaming service should not sustain more than 5 concurrent connections.

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