The launch of a new GVP website is scheduled for Monday, May 20, 2013.
|Subregion Name:||Mariana Islands|
|Volcano Type:||Submarine volcano|
|Last Known Eruption:||Unknown|
|Summit Elevation:||-43 m||- 141 feet|
|Esmeralda Bank is a massive submarine volcano with three summit cones oriented along a N-S line. Their summits are from 43 to 140 m beneath the sea surface. The highest, middle peak contains a 3-km-wide caldera open to the west and several parasitic cones. Frequent sulfur boils and water discoloration have been observed, which have variously been attributed to eruptive events or solfataric activity.|