Advisory
  If you arrived here by any means other than from the Index of Impacts,
it is suggested that you start at the Introduction to gain an understanding of what follows.
The Craters of the Moon Impact
Craters of the Moon Impact locater
      Craters of the Moon National Monument is an area in Idaho (yellow circle) which has had numerous lava flow eruptions over the past 15,000 years. The cause of these eruptions appears to be cracks in the Earth where the lava poured out. While this area has had various lava flows, it is not known as a volcano and has only relatively small cinder cones and spatter cones. The impact did not leave a crater.  The area in the yellow circle above, is in the image below.
Craters of the Moon aerial.
      This was a hard impact, where a hard rock asteroid struck the Earth at high velocity, penetrating it like a bullet, and leaving cracks in the crust of the Earth so that the molten lava could leak out. This is similar to, but smaller than the Yellowstone Impact.
Craters of the Moon Asteroid Impact and surface cracks.

     These images below detail the various geographical alignments caused by the expanding shock wave from the impact. These alignments were formed in concentric circles. With each added alignment the evidence of this as an asteroid impact becomes more and more firm. These alignments are not continuous, as the shock wave only has sufficient force to realign the land  in areas where the Earth is weak enough to allow it. For example, the shock wave imaged below is sufficient to carve the path of the Snake river where two reservoirs are formed, and it is enough to break the mountain in the Northwest to form a small river valley, and to form a valley for the smaller river to the West southwest of the circle. However to the Northeast, there is little evidence of the shock wave.
     This does not mean that the shock wave was stopped by the hard Earth in that direction, only that the wave did not have sufficient force to re-arrange the land there. The shock wave continues through the Earth to show up again at a greater distance with another concentric circle.

     The circle the shock wave left at 50 miles radius is very interesting and demonstrates how man has used the form of the land created by the shock wave. This circle formed a valley where man has built three reservoirs to store water. To the Southeast is the American Falls Reservoir on the Snake River. To the South is Lake Walcott, also on the Snake River. To the West is Magic Reservoir, on the Big Wood River, which flows south to join the Snake River. In the Northeast quadrant of this circle you will note the mountain valleys that follow the circle. This is the upper reaches of the Big Lost River. A closer view of that area is HERE.   
     The volcanic area to the East, on the circle line is most likely caused by this same shock wave as it follows the 50 mile circle and there is likely a crack in the Earth's crust deep enough for lava to flow there. The other lava flows within the circle are likely caused by shatter line cracks from the impact. A large scale image (4800  pixels wide) is available HERE.


The images below are shown at 800 pixels wide, but expandable to 1366 pixels wide without loss of detail. (ctrl + to enlarge)

Craters of the Moon Asteroid Impact Alignments at 105 miles radius.
      At 100 miles radius. A closer examination showing the various man made structures on this circle is HERE.

Craters of the Moon Asteroid Impact Alignments at 170 miles radius to the Northwest.
at 170 miles radius to the Northwest in the mountains of Idaho.
Craters of the Moon Asteroid Impact Alignments at 170 miles radius to the Northeast.
at 170 miles radius to the Northeast, through Yellowstone National Park. This shows that the Yellowstone Impact came first.

Craters of the Moon Asteroid Impact Alignments at 170 miles radius to the Southwest.
at 170 miles radius to the Southwest, through southwestern Idaho.

Craters of the Moon Asteroid Impact Alignments at 395 miles radius.
  This impact created a fine line shock wave which is visible in places the entire distance around the impact as fine line geographical alignments at 395 miles radius. Some of these are shown below.


Craters of the Moon Asteroid Impact Alignments at 395 miles radius to the Northwest.
at 395 miles radius to the Northwest, through eastern Washington State.
Craters of the Moon Asteroid Impact Alignments at 395 miles radius to the West.
at 395 miles radius to the West, through Oregon, east of the Cascade Mountains.
Craters of the Moon Asteroid Impact Alignments at 395 miles radius to the Southwest.
at 395 miles radius to the Southwest, through Nevada.
Craters of the Moon Asteroid Impact Alignments Craters of the Moon Asteroid Impact Alignments at 395 miles radius to the Southeast.
at 395 miles radius to the Southeast in Colorado.

Craters of the Moon Asteroid Impact Alignments at 550 miles radius to the Southwest.
at 550 miles radius to the Southwest in northern California.
Craters of the Moon Asteroid Impact Alignments at 550 miles radius to the Southeast.
at 550 miles radius to the Southeast through northeastern New Mexico and into Colorado.

Craters of the Moon Asteroid Impact Alignments at 550 miles radius to the Southeast.
     At 650 Miles to the Northwest through British Columbia, Canada. Notice the cracks in the two mountain ranges, aligned to the shock wave.

Craters of the Moon Asteroid Impact Alignments at 550 miles radius to the Southeast.
     At 650 Miles to the Northeast through North and South Dakota. This is the Missouri River Lake Sakakawea is the large Reservoir in North Dakota, and Lake Oahe is in South Dakota.


     Lake Sakakawea is the third larges man made lake in the United States. This reservoir lies 4 miles from the shock wave circle, or 0.6% of the radius, off the center of the line.


     Lake Oahe in South Dakota, is the fourth largest man made lake in the United States.The dam is centered on the 650 mile radius circle.
     The above images are linked to larger images (1366 pixels width) for a closer inspection.


Craters of the Moon Asteroid Impact Alignments at 550 miles radius to the Southeast.
     The river following the shock line is the Purgatoire River, a tributary to the Arkansas River.

Craters of the Moon Asteroid Impact Alignments at 550 miles radius to the Southeast.
     As southern California has numerous fault lines, in addition to the San Andreas Fault, this shock wave at 650 miles radius, most likely a added to them.  A closer image is below.

Craters of the Moon Asteroid Impact Alignments at 550 miles radius to the Southeast.
     The 650 mile radius circle runs through the Carmel Valley in Southern California.  This image is linked to a muck larger image (4800 x 2512 pixels) for a closer examination. CLICK HERE or on the image to see it,


      At 805 miles radius in South central New Mexico, the shock wave is visible passing Ruidoso, and the Capitan Mountains, top right of the image.


     The 805 mile circle passing through North Texas, Oklahoma and Kansas.


     At 805 miles radius, on the Missouri River, is the Lewis and Clark Lake. Gavins Point Dam is the impoundment that forms the lake.


      This image consolidates all the circles described above. It is linked to a larger image (4800 pixels wide) for better detail.
CLICK HERE or on the image to access it.


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© 2012 Terry Westerman