Advisory
If you arrived here by any means other than from theIndex of Impacts,
 it is suggested that you start at the Introduction to gain an understanding of what follows.

Lake Victoria
Eastern Africa

The topography of the Lake Victoria area

Lake Victoria, Eastern Africa, seismic circle at 220 miles radius.
     This impact formed Lake Victoria and a part of the Great Rift Valley. The primary seismic circle was at 220 miles radius from the center point. This impact cracked the crust of the Earth along this radius so that a number of volcanoes formed around its rim. It was probably a low density, comet type of object perhaps about the size of the lake itself. The reasoning behind this is that the depression of the lake is large. If the impactor was a hard rock asteroid of this size, the seismic circles would be far more pronounced, something on the order of the Himalayan impact or greater.

Lake Victoria, Eastern Africa, seismic circle at 220 miles radius, northwestern part.
     The north and northwestern part of the 220 mile seismic circle produced the geography as shown.
Lake Victoria, Eastern Africa, seismic circle at 220 miles radius, northeastern part.
     At 220 miles to the Northeast, note the volcanoes on the circle line.
Lake Victoria, Eastern Africa, seismic circle at 220 miles radius, southeastern part.
     At 220 miles to the Southeast. Whether the seismic wave produces volcanoes, mountains, lakes or rivers, depends on the what was there before it passed. Hard rock may be upturned to form mountains, where a softer earth may just get shaken up so that rivers may form.


Lake Victoria, Eastern Africa, seismic circle at 130 miles radius.
     A smaller seismic circle is visible at 130 miles radius. The arrowed parts are detailed to the right.

Lake Victoria, Eastern Africa, seismic circle at 130 miles radius, northwestern part.
     At 130 miles to the Northwest
Lake Victoria, Eastern Africa, seismic circle at 130 miles radius, north northeastern part.
     At 130 miles to the North northeast
Lake Victoria, Eastern Africa, seismic circle at 130 miles radius, northeastern part
     At 130 miles to the Northeast
Lake Victoria, Eastern Africa, seismic circle at 130 miles radius, southwestern part
     At 130 miles to the Southwest.

Lake Victoria, Eastern Africa, seismic circle at 330 miles radius.
     Lake Victoria seismic circle at 330 miles radius.

Lake Victoria, Eastern Africa, seismic circle at 330 miles radius, northwestern part.
     At 330 miles to the Northwest
Lake Victoria, Eastern Africa, seismic circle at 330 miles radius, northeastern part.
     At 330 miles to the Northeast.
Lake Victoria, Eastern Africa, seismic circle at 330 miles radius, southern part.
     At 330 miles to the South.

Lake Victoria, Eastern Africa, seismic circle at 409 miles radius.
At 409 miles the geography follows the circle nicely all around the East side.

Lake Victoria, Eastern Africa, seismic circle at 409 miles radius, southwestern part
     At 409 miles to the Southwest
Lake Victoria, Eastern Africa, seismic circle at 409 miles radius, northeastern part.
     At 409 miles to the Northeast.
Lake Victoria, Eastern Africa, seismic circle at 409 miles radius, east northeastern part.
     At 409 miles to the East northeast.
Lake Victoria, Eastern Africa, seismic circle at 409 miles radius, eastern part.
     At 409 miles to the East.

Lake Victoria, Eastern Africa, seismic circle at 500 miles radius.
     At 500 miles radius, the impact carved the eastern coast of the continent for 230 miles. On the West side it provided the valley for the Congo River.

Lake Victoria, Eastern Africa, seismic circle at 500 miles radius, southwestern part along the Congo River.
     At 500 miles to the Southwest
Lake Victoria, Eastern Africa, seismic circle at 500 miles radius, northeastern part.
     At 500 miles to the Northeast.
Lake Victoria, Eastern Africa, seismic circle at 500 miles radius, southeastern part
     At 500 miles to the Southeast.

Lake Victoria, Eastern Africa, seismic circle at 1045 miles radius.
     Lake Victoria seismic circle at 1045 miles radius.

Lake Victoria, Eastern Africa, seismic circle at 1045 miles radius, southwestern part
     At 1045 miles to the Southwest
Lake Victoria, Eastern Africa, seismic circle at 1045 miles radius, western part
     At 1045 miles to the West
Lake Victoria, Eastern Africa, seismic circle at 1045 miles radius, northwestern part.
     At 1045 miles to the Northwest
Lake Victoria, Eastern Africa, seismic circle at 1045 miles radius, northeastern part.
     At 1045 miles to the Northeast

Return to
The Great Rift Valley
Index of Impact Sites
Introduction


Comments, information, discussion, e-mail me here:
twest@geoledgers.com

© 2012 Terry Westerman