Legend
Earthquake 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.
Control Panel
Earthquake 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" determines whether earthquake age or depth are used to color the symbol.
Show all magnitudes >
Analyze
Instructions:
Close
Magnitude
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"
Magnitude
A
Km
B
Magnitude
Km
Magnitude
Count
Events on map
| Mag | Time (Local) | Depth (Km) |
|---|
Map boundaries
The black polygon is the authoritative region of the NCEMC.
Cross Section
Create a custom cross-section or depth-time plot. Click on "Analyze" to start.