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MT Vector

Ship involved in deadliest peacetime maritime disaster

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionFeb 18, 2026
Entity authorityQ6719007
Source-derived summary

Vector was a Philippine oil tanker that collided with the passenger ferry Doña Paz on December 20, 1987, in the Tablas Strait, Philippines, resulting in the deaths of an estimated 4,385 passengers and crew from the two ships. The incident is considered the deadliest peacetime maritime disaster in history.

Description

Vector was a small motor tanker, built in Manila, Philippines in 1980 as Oil Nic-II, with a tonnage of 629 gross register tons (GRT) and a length of 51.7 m (169 ft 7 in). The tanker was designed to transport petroleum products such as gasoline, kerosene, and diesel. Prior to December 1987, the tanker was acquired by Vector Shipping Inc., owned by Don Francisco Soriano, a shipping entrepreneur from Manila.

Collision with MV Doña Paz

On December 19, 1987, at about 8:00 p.m., Vector left Limay, Bataan en route to Masbate with a crew of 13, and loaded with 8,800 barrels of petroleum products shipped by the ship's charterer, Caltex Philippines, now Chevron. The following morning, at about 6:30 a.m., the passenger and cargo ferry Doña Paz left the port of Tacloban headed for Manila with a complement of 59 crew members, including the master and his officers, and passengers totaling 1,493 as indicated in the Coast Guard Clearance, though in fact it is estimated to have been well over 4,000. Doña Paz was a passenger and cargo vessel owned and operated by Sulpicio Lines, plying the route of Manila/Tacloban/Catbalogan/Manila/Catbalogan/Tacloban/Manila.

At about 10:30 p.m. on December 20, 1987, the two vessels collided in the open sea in the vicinity of Dumali Point in Tablas Strait between Marinduque and Oriental Mindoro.

Editorial summary

This brief starts where responsible research should: with the source description of “MT Vector” as ship involved in deadliest peacetime maritime disaster. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA dependable orientation record for establishing vocabulary, names and a first evidence trail. The current lead gives the account dated anchors—1987, 1980—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Vector, Ship and involved can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the general reference register because the source frames it as ship involved in deadliest peacetime maritime disaster. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Feb 18, 2026. The linked authority identifier is Q6719007. The first chronological checks are 1987 and 1980.

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Source & attribution

This entry incorporates text from MT Vector” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.