ERROR: undefined method `description' for nil:NilClass
The red polygon is the reporting region for this map; the black polygon is the authoritative region of the PNSN. Events inside the authoritative network are rendered as cirlces; events outside the authoritative region but inside the reporting region are rendered as squares. Explosions are always rendered as stars. More
Create a custom cross-section or depth-time plot. Click on "Custom Plot" to start.