Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Diverted; Flight Crew Requested ATC Assistance / Clarification
Aircraft
At 32;000 ft. I observed the right engine VIB (Vibration) gauge spike from .2 to 1.4 trending toward the yellow caution range along with an accompanying vibration in the floorboard. The First Officer and I reviewed the QRH (Quick Reference Handbook) for abnormal engine fan VIB indication and realized that if such conditions worsened that an intentional engine shut down may be needed. I contacted the flight attendants and asked them if they noticed anything different in the cabin and the aft Flight Attendant said it was exceedingly loud with a stronger than usual vibration coming from the right side of the aircraft. I notified Center Control that we would request Runway XX as a straight in approach due to an abnormal engine indication but that both engines were still producing power and no [priority handling] was needed. Upon arrival in ZZZ; we were met with ARFF (Aircraft Rescue and Fire Fighting) equipment and personnel and taxied to the gate without incident.
CRJ Captain reported excessive engine vibration in cruise that resulted in a precautionary landing.