In each plot I tried to mark the times when (1) the crash started, namely the volume increased and the price started to fall); (2) when the fall resumed with a much faster pace after a short pause; (3) when the price hit bottom, and (4) when it bounced back.






In some cases, the time of each event is hard to decide; other people may pick different moments.
In the plots for BTC-e and BitFinEx, the bottom hit (to about 100 US$) and the following rebound are not shown; they would be just off the right edge of the chart. If they were included , the scale of the chart would automatically change in such a way that the other details would become invisible.