The Cape Verde Islands Meteor Impact

     The Cape Verde Islands are an island group in the Atlantic Ocean located about 800 kilometers ( 500 miles ) West of Senagal and Mauritania in Northwest Africa. The islands are the upper tips of an ancient meteor impact crater of about 340 kilometes (214 miles) in diameter. The meteor came in from the Northwest.
     At 1260 km east from the center of impact, and inland 410 km from the coast of Africa, there is an interesting formation. This formation appears very similar to what a person would see on a beach after the high tide receded. I believe this to be the high water mark of the tsunami from the Cape Verde Meteor Impact. The land elevations to the East and West of the formation are about 160 feet above sea level, while the formation rises to 250 feet above sea level. A tsunami of more that 250 feet high could have pushed this loose soil and debris this far inland to make this formation. The dam and lake are on the Gorgol River in Mauritania.

     From depths of 15,000 to 16,000 feet, the mid Atlantic Ridge rises to less that 10,000 feet in depth. This is a mountain range on the ocean floor. This impact cracked the floor of the Atlantic Ocean and this allows the lava to flow both East and West along this line.
     While the Cape Verde Impact caused a really big splash, the main event was when it hit the ground. When a meteor hits the ground, the force of it's mass and high velocity are changed to seismic waves that move across the surface and through the interior of the Earth. The two main types of waves are surface waves and pressure waves. The surface waves travel in expanding circles adross the surface of the Earth, similar to ocean waves. The pressure waves move through the body of the Earth and bounce around inside. These waves move at different speeds and sometimes the two waves come together, combining their forces.
     When that happens the crust of the Earth can be broken forming tremendous rifts in the surface of the Earth. This is the cause of the Mid Atlantic Ridge. The Pacific Ring of Fire can be shown as other examples. While this meteor impact caused the Mid Atlantic Ridge, it also caused many other geographic formations around the Earth. These formations mark the expanding circles of the surface waves.


Another interesting observation from this impact is that at times the the seismic waves of the impact formed perfectly alligning formations to occure one after another as the wave rolled across the land. In the above image, with an effective altitude of about 1100 miles (1,770 km) of the Andes Mountains in Peru, the blue dots mark some of these formations.Others may be noted by closely studying the image. Many others can be seen from a closer examination of the area.

In the Southern Ocean this seismic circle crosses the center of the American Antarctic Ridge (North - Weddell Ridge) for over 1,800 miles, nearly 3,000 km, as it circles the Earth. This circle is 8,345 km (5,185 miles) radius from the center of impact in the Cape Verde Islands.

At 16,720 km (10,390 miles) from the center of impact, the seismic circle cuts a fine line through New Zealand. The arrows note some of the more prominant features through the islands.
The kmz file for the Cape Verde Impact is HERE It shows 26 seismic circles and the major formations that demonstrate each circle. This file will open in Google Earth. If you do not have Google Earth, get it here. 
Once loaded into Google Earth, expand the kmz file in the left hand column by clicking the arrow to the left of the file, then expand each circle by clicking the arrow to the left of the circle name. A number of placemarks will appear below each circle name. By clicking each placemark, you will be taken to that geographic formation which describes the circle. We are looking for formations of many kinds that closely follow the circle line. Should you wish, you can zoom in from there to examine the formations more closely. This kmz file only describes the most obvious formations. By following the circles closely, you may find many more, and you may find other circles as well.

Comments, information, discussion, e-mail me here:
Index of Impact Sites
  2021 Terry Westerman