A Meteorite Crater Filled with Water
Karakul Lake fills the center of a confirmed meteorite impact crater spanning 52 kilometers across the Eastern Pamir plateau. The asteroid struck between 5 and 25 million years ago, leaving a complex crater with a central uplift that now forms a peninsula and island dividing the lake into two basins. The western basin plunges to 236 meters, while the shallow eastern basin reaches only 22 meters. Shocked quartz and shatter cones confirmed the impact origin.
The lake covers 380 square kilometers at 3,960 meters elevation, making it one of the highest large lakes on Earth. It is endorheic with no outflow, fed by three small glacial streams. Evaporation has concentrated minerals over millennia, producing bitter, saline water and salt-crusted shorelines. The surface shifts from deep turquoise under calm skies to near-black during the fierce storms that sweep across the plateau without warning.