Map shows earthquake locations from the UUSS earthquake catalog as circles and locations from other networks as squares. Please note that earthquakes in areas outside of the two UUSS monitoring regions (black boxes) may be incomplete. See USGS for more complete earthquake information outside of the black boxes.


Recent Eqs Map Legend

The sizes of symbols scale with earthquake magnitude, and their color with either the age of the earthquake or its depth, as shown in the legend below, and selected in the panel to the right of the map.  Clicking on an earthquake symbol shows its basic details and a link to a page with more details about the individual earthquake. Probable surface explosions (usually due to quarrying or road building) are shown as stars.

Control Panel

Recent Eqs Map Panel

Using the tools in this panel you can control the earthquakes shown on the map. The minimum magnitude to plot is selected by the slider. The "Time" and "Depth" determine whether earthquake age or depth is used to color the symbol.

Show all magnitudes >


Instructions: Close
Please follow the steps below:
  • 1) To begin, click the "Draw" button
  • 2) Click a point on the map, this will be the left side of the cross-section.
  • 3)Click a second point on the map, this will be the right side of the cross-section.
  • 4) Drag square on line to include events to plot.
    • 5) Select plot type and depth constraint if any.
    • 6) Click "Plot"
A Km B

Events on map

Mag Time (Local) (UTC) Depth (Km) (Miles)

Map boundaries

The black polygons are the authoritative regions for UU and WY seismic networks. Events inside the authoritative regions are rendered as circles.

Cross Section

 Create a custom cross-section or depth-time plot. Click on "Analyze" to start.