here it says that such an event should create detectable gravitational waves https://aasnova.org/2019/07/05/can-we-detect-gravitational-waves-from-core-collapse

here it says that such an event should create detectable gravitational waves https://aasnova.org/2019/07/05/can-we-detect-gravitational-waves-from-core-collapse-supernovae/ https://aasnova.org/2019/07/05/can-we-detect-gravitational-w... The article mentions that we might get good enough detectors in some ten years already.