May 9, 2006 · There are nine active volcanoes within the Commonwealth of the Northern Mariana Islands (CNMI) that can pose a significant hazard to air traffic and, thus, to the economy of CNMI.

Pagan is a volcanic island in the Marianas archipelago in the northwest Pacific Ocean, under the jurisdiction of the Commonwealth of the Northern Mariana Islands. It lies midway between Alamagan to the south and Agrihan to the north.

Most CNMI volcanoes are hidden below the surface of the sea. About a third of these submarine volcanoes host active hydrothermal systems, thriving biological communities, and other natural wonders, such as Daikoku seamount with its bub-bling vents and craters filled with molten sulfur.

Jun 26, 2003 · The eruption of Anatahan Volcano in the Commonwealth of the Northern Mariana Islands (CNMI) continues. It has generated much interest in the volcanologic community and among the residents of Saipan and Guam. It has, unfortunately, also generated exaggerated accounts on the Internet.

Esmeralda Bank is a massive submarine volcano with three summit cones oriented along a N-S line. Their summits are from 43 to 141 m beneath the sea surface. The highest, middle peak contains a 3-km-wide caldera open to the west and several parasitic cones.

Jan 23, 2025 · This level of monitoring can detect significant volcanic activity in the CNMI but cannot provide advanced warning of eruptions. Due to a lack of geophysical monitoring on any of the volcanic islands, all volcanoes have alert levels of UNASSIGNED.

Here, the processes of active island and submarine volcanoes produce activity both underwater and in the atmosphere that poses potential hazards to the daily lives of residents and travelers. Since 2000, CNMI volcanoes have erupted six times, and one submarine volcano has been active in American Samoa....

Nov 21, 2022 · Is there a volcano erupting beneath the surface of the water in the northern area of the Commonwealth of the Northern Mariana Islands?

canic activity and providing regular updates on volcano status to CNMI EMO and the USG meter, respectively and represent the largest and one of the most active CNMI volcanoes. The 570-m-high Mount Pagan at the NE end of the island rises above the flat floor of the northern caldera, which probably formed during the early Holocene. South Pagan

Apr 4, 2025 · Ahyi seamount is a large conical submarine volcano that rises to within 260 feet (79 m) of the sea surface about 11 miles (18 km) southeast of the island of Farallon de Pajaros (Uracas) in the Northern Mariana Islands.