The slave ship Hércules (a) Vulcano arrived with enslaved Africans in Brazil. About 592 people had been taken aboard and approximately 550 arrived.

Vessel: Hércules (a) Vulcano; flag: Portugal / Brazil; rig: Brig. People recorded in connection with the voyage: Captain: Lima, Francisco José Esteves de; Captain: Chaves, José de Freitas. The voyage began at Rio de Janeiro. Principal recorded place where captives were acquired: Quilimane (East Africa and Indian Ocean islands). Principal recorded disembarkation place: Rio de Janeiro. Recorded duration of the captives' Atlantic crossing: 58 days. Estimated mortality during the crossing: 7.0%. Recorded outcome: Voyage completed as intended.