1987-12-20 · Tablas Strait, Philippines · Passenger ferry · Philippines flag
The Philippine-flagged passenger ferry Doña Paz collided with the coastal tanker Vector in the Tablas Strait at 22:30 on 20 December 1987, en route from Tacloban to Manila. Vector was carrying 8,800 barrels of gasoline + petroleum products; the cargo ignited on impact + engulfed both vessels within minutes. Doña Paz was carrying an estimated 4,341 passengers versus a certified capacity of 1,518 — massive overloading was later confirmed as the peak-season Christmas homecoming pattern in Philippine domestic shipping. Only 24 people survived. Estimated 4,386 deaths make Doña Paz the worst peacetime maritime disaster in history, more than double the Titanic loss (1,517).
Doña Paz is the definitive case for the developing-nation passenger-ferry overloading pattern + the SOLAS-vs-domestic-regulation gap. Every Filipino maritime officer studies it as the case that reshaped Philippine coastal-shipping regulation. The collision-with-tanker + immediate cargo-fire propagation also drove IMO tanker-inerting + passenger-vessel-lifeboat-drill requirements for high-density peak-season operations.
Direct impetus for Philippine Maritime Industry Authority (MARINA) manning + safety reform. Cited in IMO discussion of overloading + passenger-ferry stability regulation applied to developing-nation coastal ferries.