Geology Portal Gets Updated

Whether a newbie to DGER’s online geologic information portal or an old hat at using it, you’ll be interested to know that we have just released the latest version of it to the public! The latest version runs on Esri’s ArcGIS for Server 10.1 platform, but there won’t be a noticeable difference to the way you use it. The changes you will notice consist of data additions and theme changes. Here is a synopsis of the latest portal enhancements:

  1. The Subsurface geology theme has been updated with the addition of approximately 8000 points, expanding the former, primarily Seattle-area coverage to statewide coverage. The new points have a variety of sources including the Washington State Departments of Transportation, Health, and Ecology, the Columbia Basin Groundwater Management Area, the U.S. Geological Survey, and many County Public Utility Districts. Further data additions are planned for the Subsurface theme in the near future, so check back often.
  2. The Geothermal Resources theme has additional gradient heat flow wells and earthquake event points. It now also includes a number of earthquakes with relocated hypocenters, based on results from the HypoDD modeling program, as well as new volcanic vents and geophysical data layers. Volcanic vents can be viewed categorized by vent group or by age, and the Geophysical Data layers add statewide aeromagnetic and gravity anomaly maps to the mix.
  3. Volcanic vents, geophysical data, and updated earthquakes have also been added as options within the Washington Interactive Geologic Map theme.

    The complete Bouguer gravity anomaly and gravity base stations layer is part of the geophysical data now found in the Geothermal Resources and Washington Interactive Geologic Map themes.
    The complete Bouguer gravity anomaly and gravity base stations layer is part of the geophysical data now found in the Geothermal Resources and Washington Interactive Geologic Map themes.
  4. We have added a Natural Hazards theme. You will notice that we have eliminated the individual Landslide and Lahar themes and have incorporated them into a combined Natural Hazards theme represented by the hazards icon in the portal menu webpage.
Portal Natural Hazards Icon
The Natural Hazards icon as seen on the Portal menu page.

In addition to landslides and lahars, the Natural Hazards theme also includes earthquake and liquefaction hazards, tsunami hazards, and tsunami evacuation zones. We intend to update the Natural Hazards viewer with flood and other hazards in the future, so stay tuned!