SEAWARD EXPLORER

Identity & particulars

Name

SEAWARD EXPLORER

IMO numberWhat is an IMO number?

9043873

MMSIWhat is an MMSI?

366608000

Call signWhat is a call sign?

WDM7651

Flag

United States

Vessel type

Anti-pollution vessel

Gross tonnageGross tonnage vs deadweight

1,335

Length overall

60.2 m

Beam

—

Year built

1992

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.

Timeline

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

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.

Former and other names

Names attested for this ship other than its current name.

A sanctions list's date is the earliest date the list shows the name, not when the ship took it. A name on a list is shown as a former name only where AIS shows the ship using another name after that date; otherwise it is listed as a name the list uses. AIS name changes are dated when Seadar saw them.

About SEAWARD EXPLORER

California Responder is a Responder-class oil-skimming vessel registered in Norfolk, Virginia, USA, and based in Port Hueneme, California. California Responder and her sister ship, Pacific Responder, operated off the coast of Louisiana in the Gulf of Mexico during the Deepwater Horizon oil spill. The vessels sailed to the gulf from their home ports in California to assist in the containment efforts.

Summary from Wikipedia, licensed CC BY-SA.

Frequently asked questions

Where is SEAWARD EXPLORER now?

SEAWARD EXPLORER (Anti-pollution vessel, United States flag) was last seen on AIS on Sep 25, 2026, 01:03 UTC, under way at 3.7 kn, in the North Pacific Ocean. Seadar has no more recent AIS position for this ship. Its current location cannot be established from this report. The crew-entered destination was US HNL (voyage report via AISstream.io global terrestrial AIS, received Sep 25, 2026, 00:08 UTC). This report does not confirm the ship’s current route.

What kind of ship is SEAWARD EXPLORER?

SEAWARD EXPLORER is an anti-pollution vessel sailing under the flag of United States, built in 1992. The vessel is 60.2 m long and has a gross tonnage of 1,335.

What sanctions and inspection records does Seadar hold for SEAWARD EXPLORER?

Seadar has no matched sanctions record displayed for SEAWARD EXPLORER from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels and the New Zealand Russia Sanctions Register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for SEAWARD EXPLORER. Missing records do not establish whether the ship has been detained.

Sister ships

Ships of the same class, Responder class oil recovery vessels (source: Wikidata).

• MELISSA CIMO 9043835Cargo ship · built 1992 · 1,335 GT
• SEAWARD ENDEAVORIMO 9043885Cargo ship · built 1992 · 1,335 GT
• GULF RESPONDERIMO 9043847Anti-pollution vessel · built 1993 · 1,335 GT
• IMO 9043902IMO 9043902Anti-pollution vessel · built 1993 · 1,557 GT
• OAG RESPONDERIMO 9044645Cargo ship · built 1993
• Point NemoIMO 9043914Port tender · built 1993 · 1,335 GT
• RAVENIMO 9044669Ship · built 1993 · 1,322 GT
• SWIFT RESPONDERIMO 9043938Cargo ship · built 1993 · 1,335 GT