The slave ship Hércules (a) Vulcano arrived with enslaved Africans in Brazil. About 526 people had been taken aboard and approximately 497 arrived.

Vessel: Hércules (a) Vulcano; flag: Portugal / Brazil; rig: Bergantim. People recorded in connection with the voyage: Captain: Chaves, José de Freitas; Captain: Andrade, José Ferreira de; Investor: Andrade, José Ferreira de. The voyage began at Rio de Janeiro on 5 September 1828. 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: 62 days. Estimated mortality during the crossing: 6.0%. Recorded outcome: Voyage completed as intended.