G.R. No. L-2500

FACTS:
Maria de la Concepcion Martinez Cañas filed a petition for land registration over the Hacienda Payatas. Mariano Tuason and others, owners of the adjacent Hacienda Mariquina, opposed, claiming ownership of a portion of the land (approximately 30 hectares) located on the Payatas side of the San Mateo River. They alleged this land originally belonged to Hacienda Mariquina but was transferred by the river’s action. In 1896, the parties entered into an agreement to appoint experts and an arbitrator to resolve the dispute, but the arbitration was never completed due to the revolution. The parties later submitted the expert reports and witness testimonies from that proceeding for the court’s consideration. The central dispute was whether the change in the river’s course, which allegedly transferred the land, was gradual or sudden.

ISSUE:
Whether the transfer of the approximately 30-hectare land from the Hacienda Mariquina side to the Hacienda Payatas side of the San Mateo River was effected gradually, constituting accretion under Article 366 of the Civil Code, or suddenly, constituting avulsion under Article 368.

RULING:
The Supreme Court affirmed the lower court’s decision, ruling in favor of Cañas (Payatas). The change in the river’s course was gradual, making Article 366 on accretion applicable. The land therefore belonged to the owner of the estate to which it had accretedHacienda Payatas. The evidence presented by Tuason (Mariquina) was insufficient to prove a sudden change (avulsion) under Article 368. The testimonies of witnesses did not establish that a known, identifiable portion of land was detached and transported intact to the opposite bank. The Court found the evidence indicated only the gradual erosion or “eating away” of the Mariquina bank by the river’s current, which resulted in accretion to the Payatas side.