The Daily Croissant

The shockwave reached the surface with an acceleration of over 35 g (340 m/s2), causing a dome of the Earth's surface, approximately 3 km (2 mi) in radius, to rise about 5 meters (16 ft).[24] The blast "turned the surrounding sea to froth" and "forced geysers of mud and water from local streams and lakes 50 feet (15 m) into the air".[21] A "surface collapse feature", also known as a subsidence crater, was formed by material collapsing into the cavity formed by the explosion.[3]