Mare Crisium

Mare Crisium
LRO image
Coordinates17°00′N 59°06′E / 17.0°N 59.1°E / 17.0; 59.1
Diameter556 km (345 mi)

Mare Crisium /ˈkrɪsiəm/ (Latin crisium, the "Sea of Crises") is a lunar mare located in the Moon's Crisium basin, just northeast of Mare Tranquillitatis. Mare Crisium is a basin of Nectarian age. It was formed by the flooding of basaltic lava that filled an ancient asteroid impact.