What kind of ship is MAERSK RIO ALFA?

MAERSK RIO ALFA is a container ship sailing under the flag of Singapore, built in 2009 by Mangalia Shipyard. The vessel is 286.5 m long and has a gross tonnage of 73,899.

What sanctions and inspection records does Voydar hold for MAERSK RIO ALFA?

Voydar has no matched sanctions record displayed for MAERSK RIO ALFA from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels, the New Zealand Russia Sanctions Register and the French national asset-freeze register. Coverage may be incomplete; this is not sanctions clearance. MAERSK RIO ALFA has 9 recorded Port State Control inspections. Detention and deficiency detail is not recorded for these inspections.

MAERSK RIO ALFA

Container ship · Singapore · built 2009 · AIS Class A

IMO9348106MMSI563051600Call sign9VJZ6Last AIS position Oct 5, 2026, 02:14 UTC

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In short

MAERSK RIO ALFA (Container ship, Singapore flag) was last seen on AIS on Oct 5, 2026, 02:14 UTC, under way at 11.1 kn, in the South Pacific Ocean. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. Its crew-entered AIS destination is NZTRG>NZLYT, with an ETA of Oct 9, 2026, 00:05 UTC; its reported draught is 12.5 m (voyage report via AISstream.io global terrestrial AIS, received Oct 5, 2026, 01:22 UTC). Its last detected port call was at Pasir Panjang: arrived Jun 9, 2026, left Jun 9, 2026.

Vessel type: Container ship
Flag: Singapore
Year built: 2009
Gross tonnage: 73,899
Size (length × beam): 286 m
Registered owner: —

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Last reported position

received Oct 5, 2026, 02:14 UTC

Position: 37.3423° S, 177.2135° E
Area: South Pacific Ocean
StatusWhat do AIS statuses mean?: Under way using engine
Speed: 11.1 kn
Course: 94°
Heading: 97°

37.3423° S, 177.2135° E

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Voydar detected no port call in the last 30 days.

Port calls are detected by Voydar from AIS (at least 30 minutes slow inside a harbour area); see Port calls below.

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Identity & particulars

Name: MAERSK RIO ALFA
IMO numberWhat is an IMO number?: 9348106
MMSIWhat is an MMSI?: 563051600
Call signWhat is a call sign?: 9VJZ6
Flag: Singapore
Vessel type: Detailed type from WikidataContainer ship
AIS ship type: Cargo (hazardous cat. C)
Gross tonnageGross tonnage vs deadweight: 73,899
Length overall: 286.5 m
Beam: —
Year built: 2009

A tag next to a value names the register that supplied it (hover or tap it for the record and date). Values without a tag come from the ship's own AIS broadcasts or from Wikidata. Position and identity are derived live from AIS.

Ownership & management

Each line shows where the fact comes from. Links backed by an identifier point to the company page.

Builder: Mangalia Shipyard
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026

Timeline

Dated events for this ship from every source Voydar holds, newest first. Each line names its source; derived items say how they were derived.

Date	Event	Source
Jun 9, 2026, 23:20 UTC	Left Pasir PanjangAIS-detected	Voydar port-call detector (AIS geofence)
Jun 9, 2026, 02:49 UTC	Arrived at Pasir PanjangAIS-detected	Voydar port-call detector (AIS geofence)
Apr 3, 2014	Reported departure from CharlestonAuthority-reported	USACE foreign traffic vessel entrances & clearances
Apr 3, 2014	Reported arrival at CharlestonAuthority-reported	USACE foreign traffic vessel entrances & clearances
Apr 1, 2014	Reported departure from ELIZABETH RIVER, VAAuthority-reported	USACE foreign traffic vessel entrances & clearances
Mar 26, 2014	Inspection at STATEN ISLAND, New York	USCG PSIX / CGMIX inspections
Feb 21, 2014	Inspection at STATEN ISLAND, New York	USCG PSIX / CGMIX inspections
Jan 19, 2014	Port State Control inspection at STATEN ISLAND, New York	USCG PSIX / CGMIX inspections
Jun 27, 2013	Inspection at STATEN ISLAND, New York	USCG PSIX / CGMIX inspections
Jun 6, 2013	Port State Control inspection at North Charleston, South Carolina	USCG PSIX / CGMIX inspections
Jun 5, 2013	Inspection at Portsmouth, Virginia	USCG PSIX / CGMIX inspections
Jan 16, 2013	Port State Control inspection at North Charleston, South Carolina	USCG PSIX / CGMIX inspections
Apr 16, 2012	Inspection at STATEN ISLAND, New York	USCG PSIX / CGMIX inspections
Apr 1, 2012	Port State Control inspection at STATEN ISLAND, New York	USCG PSIX / CGMIX inspections

Owner, operator and manager changes found by comparing yearly EU MRV reports are dated to the reporting year ("during 2025"), not to a day. Port calls here are the most recent only; the full lists are further down.

Safety & inspections

Inspections

not recorded

Detentions

Deficiencies

Date	Type	Port	Findings
Mar 26, 2014	Vessel Operational Control	STATEN ISLAND, New York	clean
Feb 21, 2014	Vessel Operational Control	STATEN ISLAND, New York	clean
Jan 19, 2014	Vessel InspectionPSC	STATEN ISLAND, New York	clean
Jun 27, 2013	Vessel Inspection	STATEN ISLAND, New York	clean
Jun 6, 2013	Vessel InspectionPSC	North Charleston, South Carolina	clean
Jun 5, 2013	Boarding	Portsmouth, Virginia	clean
Jan 16, 2013	Vessel InspectionPSC	North Charleston, South Carolina	clean
Apr 16, 2012	Vessel Inspection	STATEN ISLAND, New York	clean
Apr 1, 2012	Vessel InspectionPSC	STATEN ISLAND, New York	clean

Source: U.S. Coast Guard Port State Information Exchange (PSIX) — public domain. Covers inspections recorded in U.S. waters. Free on Voydar; the incumbents charge for this.

Emissions & fuel consumption

Independently verified annual figures reported under the EU MRV regulation — public environmental data the incumbents don't surface.

Year	CO₂ emitted	Fuel burned	Time at sea	CO₂ / n mile
2018	48,968 t	15,617 t	181 days	772 kg

Technical efficiency: EEDI (15.33 gCO₂/t·nm). Source: European Commission / EMSA THETIS-MRV (EU Regulation 2015/757). Covers voyages to, from and within the EU/EEA.

Port calls

Two kinds of evidence, kept apart: calls Voydar detected from the ship's AIS positions, and arrivals and departures published by port authorities and customs records.

Detected from AIS AIS-detected

Port	Arrived	Departed	Time in port
Pasir Panjang SGPAP	Jun 9, 2026, 02:49 UTC	Jun 9, 2026, 23:20 UTC	20 h 30 min

Detected by Voydar when the ship's AIS positions stayed slow inside a harbour area. Calls shorter than 30 minutes are not shown. Depends on AIS reception; detection started on June 8, 2026.

Reported by authorities Authority-reported

Port	Record	Date (UTC)	Berth	Source
Charleston USCHS	Departure	Apr 3, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
Charleston USCHS	Arrival	Apr 3, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
ELIZABETH RIVER, VA	Departure	Apr 1, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
ELIZABETH RIVER, VA	Arrival	Mar 31, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
New York USNYC	Departure	Mar 29, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
New York USNYC	Arrival	Mar 29, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
Charleston USCHS	Departure	Mar 3, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
Charleston USCHS	Arrival	Mar 3, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
ELIZABETH RIVER, VA	Departure	Feb 28, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
ELIZABETH RIVER, VA	Arrival	Feb 28, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
New York USNYC	Departure	Feb 26, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
New York USNYC	Arrival	Feb 25, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances

Records published by the authority named on each row. Earliest record for this ship: April 1, 2012.

Source: US Army Corps of Engineers, Waterborne Commerce Statistics Center (US CBP entrance/clearance records). Licence: US Government work — public domain.

Behaviour at sea Voydar-derived

Patterns Voydar derived from this ship's AIS broadcasts. They are inferences, not reports: each one shows how it was computed and how confident we are, and none of them says why a ship behaved this way.

When	What we observed	Confidence
Oct 3, 2026, 14:47 UTC	Draught change Reported draught went from 11 m to 12.4 m while in port at PASIR PANJANG Terminal. Voydar infers the ship probably loaded cargo. Method seadar.behaviour.draught_change v1	Medium (65%)
Sep 28, 2026, 16:09 UTC	Draught change Reported draught went from 12 m to 11.2 m while in port at PASIR PANJANG Terminal. Voydar infers the ship probably discharged cargo. Method seadar.behaviour.draught_change v1	Medium (65%)

When

What we observed

Confidence

Oct 3, 2026, 14:47 UTC

Draught change

Reported draught went from 11 m to 12.4 m while in port at PASIR PANJANG Terminal. Voydar infers the ship probably loaded cargo.

Method seadar.behaviour.draught_change v1

Medium (65%)

Sep 28, 2026, 16:09 UTC

Draught change

Reported draught went from 12 m to 11.2 m while in port at PASIR PANJANG Terminal. Voydar infers the ship probably discharged cargo.

Method seadar.behaviour.draught_change v1

Medium (65%)

Source: AISstream.io global terrestrial AIS. AIS data: AISstream.io. Licence: none published.

Derived from AIS positions of feeds whose terms allow display on Voydar. Coverage is terrestrial: gaps are reported only where our receivers kept hearing other ships. Detections below medium confidence are not shown.

How these are computed →

About MAERSK RIO ALFA

Rio Madeira is a container ship owned by A.P. Moller Singapore Pte. Ltd. and operated by Maersk Line AS. The 286.45-metre (939.8 ft) long ship was built at Daewoo Mangalia Heavy Industries in Mangalia, Romania in 2009. Originally owned by Rio Madeira GmbH & Co KG, a subsidiary of Hamburg Süd, she has had two owners and been registered under three flags. The vessel is one of three ships of the Rio class built for Hamburg Süd by Daewoo Mangalia Heavy Industries in 2009.

Summary from Wikipedia, licensed CC BY-SA.

Frequently asked questions

Where is MAERSK RIO ALFA now?: MAERSK RIO ALFA (Container ship, Singapore flag) was last seen on AIS on Oct 5, 2026, 02:14 UTC, under way at 11.1 kn, in the South Pacific Ocean. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. The crew-entered destination was NZTRG>NZLYT (voyage report via AISstream.io global terrestrial AIS, received Oct 5, 2026, 01:22 UTC). This report does not confirm the ship’s current route.
What kind of ship is MAERSK RIO ALFA?: MAERSK RIO ALFA is a container ship sailing under the flag of Singapore, built in 2009 by Mangalia Shipyard. The vessel is 286.5 m long and has a gross tonnage of 73,899.
What sanctions and inspection records does Voydar hold for MAERSK RIO ALFA?: Voydar has no matched sanctions record displayed for MAERSK RIO ALFA from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels, the New Zealand Russia Sanctions Register and the French national asset-freeze register. Coverage may be incomplete; this is not sanctions clearance. MAERSK RIO ALFA has 9 recorded Port State Control inspections. Detention and deficiency detail is not recorded for these inspections.

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