Enki Catena long. This chain of 13 craters probably formed by a comet which was pulled into pieces by Jupiter's gravity as it passed too close to the planet. Soon after this breakup, the 13 fragments crashed onto Ganymede in rapid succession. The Enki craters formed across the sharp boundary. (wikipedia entry)
A catena is a chain of craters. On Ganymede they are named after gods and heroes of ancient Fertile Crescent people.
Image Source. Marker locations are approximate and may not always appear to align with image on map.