Mare Crisium
LRO image | |
| Coordinates | 17°00′N 59°06′E / 17.0°N 59.1°E |
|---|---|
| Diameter | 556 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.