Aftershock sequence graphs
![Two graphs. One is aftershock activity following an earthquake. Two is previous similar sequence.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/non-para-cartoon.gif?itok=MIDeLnYM)
Detailed Description
The black line in the top graph represents the beginning of the aftershock activity following an earthquake that just happened. The graph at the bottom represents the 4 aftershock sequences in the earthquake catalog that had a sequence beginning that matches the current sequence. The green lines show how each of those aftershock sequences continued.
Sources/Usage
Public Domain.