BackgroundA large but topographically indistinct pyroclastic shield volcano lies in the Nicaraguan depression at Malpaisillo, NE of Las Pilas volcano and NNW of Momotombo volcano. The 10-km-wide Malpaisillo caldera, also known as Cerro el Chúcaro, forms a flat plain on the floor of the graben that contrasts dramatically with surrounding extensively dissected dacitic airfall and ignimbrite deposits. These deposits extend across the graben east of the Marrabios Range and reach into Lake Managua to the SE. They also crop out west and south of the Marrabios Range. A K-Ar age of 0.46 million years was obtained from the Malpaisillo deposit.
Source: Smithsonian / GVP volcano information
See also: Sentinel hub | Landsat 8