It was after the FOMC meeting on Sep 21, and after BOJ presser on Sep 22 noon (Japan time).
Price was at 145.80 when they sold USD with help of Swiss bank, to buy back yen. These two banks have opposing interests, Swiss desperately want their currency to weaken, while Japan wants a stronger currency. So, they paired up and rock the market.
Intervention or not, there will be some pullback in near team. My view is, this pair cannot just go straight to 160 without retracing.