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EGS: Interactive, Real-Time Map of Earthquakes at
Desert Peak and Brady's Hot Springs

  • Click on map icons (see legend) for more detailed earthquake information.
  • Map data is automatically refreshed every 10 minutes.
Desert Peak Geothermal Field Legend
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Seismicity in 3D

The 3D scatterplot below shows the selection of earthquakes satisfying the filter criteria above. You can use your mouse to click on the map and rotate it and zoom in or out. Clicking on the bottom right corner of the plot will allow you to resize the window. The units of depth are kilometers and 0.0km is sea level.

Please note: The 3D visualization provided below is implemented using the canvasXpress library, which employs the html5 canvas element in order to simulate 3D without any special download or plugin. It will only work on the latest, most current browsers. If you are having problems viewing the plot and have an older browser, we highly recommend either upgrading your browser, or installing the latest version of a different browser (e.g., Mozilla Firefox or Google Chrome).

EGS: About Desert Peak and Brady’s Hot Springs

Desert Peak and Brady’s Hot Springs are two existing producing geothermal fields in Northern Nevada. These fields are small producers compared to such fields as The Geysers (less than 15 MW each), but both are sites of EGS projects. The existing seismicity in both of these areas, which are part of the “Basin and Range” extensional geologic province, is very low. In addition, both of these regions are in areas of very low population and pose very low risk for induced seismicity.

EGS experiments will be carried out by the operators (Ormat Inc ) and  DOE  in 2010 and 2011 to determine the potential for expanding the production of geothermal energy. A seismic array of 9 three-component stations has been installed at Desert Peak to monitor background seismicity and  the seismicity associated  with the  EGS  operations. This array has detected very low activity (all less than magnitude 1.5) over the last year. In early 2010, a similar array of 8 shallow (100 ft ) borehole three-component stations was installed at Brady’s Hot Spring (a few miles to the NW, see map) to also monitor seismic activity prior to EGS activity at  the Brady's site. Seismicity prior to the injection at Brady's was also very low, similar to seismicity at the Desert Peak site. Note that the detection threshold of each array is about a magnitude -1.0. The detection threshold of the regional network operated by the University of Nevada , Reno, in this area is on the order of magnitude 1.0 to 1.5.