Fenambosy Chevron
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The Fenambosy Chevron is one of four chevron-shaped land features on the southwest coast of Madagascar, near the tip of Madagascar, 180 meters (590 ft) high and 5 kilometres (3.1 mi) inland. Chevrons such as Fenambosy have been hypothesized as providing evidence of "megatsunamis" caused by comets or asteroids crashing into Earth,[1] although has been challenged by other geologists and oceanographers.[2][3]
The Burckle crater about 1,700 kilometres (1,100 mi) east-southeast of the Madagascar chevrons is hypothesized to be an asteroid impact crater that caused the megatsunami about 4,500 to 5,000 years ago.[1]
