The below chart shows the distribution of liquidated address by their collateral. Majority of liquidated users has WETH as collateral, followed by UNI, CRV and AAVE. The sudden raise in liquidations may due to the bitcoin price tanking. Other culprit is perhaps the rumored supply chain crisis that is looming the "vanilla" market, which may also affects crypto markets.

The below chart shows the number user who got liquidated by day. There is sudden spike of after Nov 16th. The peak ranges from 30 and 47 per day.