ew.logo_tinyEarthWorm (v7.7 as of Sept 21, 2013) is an Open Source (not to be confused with Open Architecture) software system that is used globally for regional and local network seismology. It has been around since the early 1990s and is used by over 160+ organizations world-wide for monitoring earthquakes and volcanoes. For more information about EarthWorm, visit the EarthWorm Web pages and join the EarthWorm Google Group mailing list.

ISTI serves as the primary maintainer of the EarthWorm source code. We also host the ewdev developer mailing list as well as the SVN source code repository. We have been working with Earthworm since our inception and are your source for training, configuration, remote support, and other Earthworm services.


In addition to maintaining the EarthWorm source code, ISTI provides commercial support for EarthWorm in the form of installation, upgrades, new software development, and training. One of our more popular tools is EZ EarthWorm, EZW, which allows for easy, quick, and remote microseismic monitoring. To download a brochure about EZW, or any of or other tools and services, click here.

Please contact us for help with EarthWorm.

Other flavors of Earthworm that ISTI installs are Bulletin Hydra (in use and developed at the National Earthquake Information Center) and EarlyBird (in use around the world for Tsunami monitoring; developed by the Alaska Tsunami Warning Center). In fact, ISTI provided the Linux port of EarlyBird back to the EarthWorm community as a free service.

ISTI EarthWorm Tools

In addition to providing support and services we have a set of exclusive ISTI licensed tools to help with your network operations and performance. Some of the services our tools can provide are to page you with a ground motion value from an earthquake, or simply SMS you earthquake details over a hardware modem. We are also able to connect the CISN Display (aka QuakeWatch: A GIS based Graphical User Interface to earthquake information and products) Screen Shot 2013-09-28 at 7.35.30 PMto EarthWorm and EarlyBird with our plugin modules. We have experience with the EarthWorm database MoleDB and the Web tools to connect to it and can build you a custom EarthWorm solution that will improve your earthquake locations and processing beyond what you could imagine.