Farallón de Pájaros (from Spanish Farallón de Pájaros, meaning "Birds' Sea Stack", see Stack (geology)), also known as Urracas (from Spanish Urracas, meaning "Magpies"), is a small (2.3 km 2) uninhabited volcanic island, the northernmost island and also farthest west in the Northern Mariana Islands chain.

The small 2-km-wide island of Farallon de Pajaros (also known as Uracas) is the northernmost and most active volcano of the Mariana Islands.

Farallon de Pajaros ( Isle of the Birds) is also called Uracas or from Uracas – Spanish for magpie. It is the most active volcanic island in the Mariana Archipelago and is located at latitude 20 31’N, longitude 144 54’E, approximately 595 km north of Saipan.

Jun 23, 2024 · Farallón de Pájaros (from Spanish Farallón de los pájaros, meaning "Birds' Rock"), also known as Uracus or Urracas (from Spanish Urracas, meaning "Magpies"), is a small (2.3 km 2) uninhabited volcanic island, the northernmost island in the Northern Mariana Islands chain.

Galatheid crabs and shrimp graze on bacterial filaments on the mussel shells at NW Eifuku submarine volcano, north of Uracus Island. The black “scars” on the shells are former anchor points of mussels who have cut their threads and moved on.

Explosive eruption, destruction of south crater wall, lava flows emplaced on south side (Corwin, 1971). On the night of 28-29 March 1941 "fire was observed shooting out of the top and lava flowing down from the volcano" from a passing ship (Volcano Letter 472).

Farallón de Pájaros, also known as Urracas, is a small uninhabited volcanic island, the northernmost island and also farthest west in the Northern Mariana Islands chain.

Sep 28, 2023 · The small 2-km-wide island of Farallon de Pajaros (also known as Uracas) is the northernmost and most active volcano of the Mariana Islands. Its relatively frequent historical eruptions dating back to the mid-19th century have caused the andesitic volcano to be referred to as the "Lighthouse of the western Pacific."

Additional biodiversity: The entire island of Uracus is proposed as an IBA because of its population of breeding seabirds. Uracus qualifies under both A4i criteria for its population of Sooty Terns and under A4iii for its total population.

The small 2-km-wide island of Farallon de Pajaros (also known as Uracas) is the northernmost and most active volcano of the Mariana Islands. Its relatively frequent historical eruptions dating back to the mid-19th century have caused the andesitic volcano to be referred to as the "Lighthouse of the western Pacific."