Lunar tremors

[astroavani]

Although it is little more than a great piece of rock with very little geological activity, the Moon also has its shakes. These earthquake-like movements are divided into four categories, the first three (deep tremors, vibrations from meteorite impacts and thermal movements caused by the Sun's heat) relatively harmless.
Already the fourth variant ("shallow" tremors) can be quite unpleasant, reaching 5.5 degrees on the Richter scale and lasting for incredibly long 10 minutes. According to NASA, another effect of them is to make the Moon "sound like a bell". And the scariest thing is that we have no idea of the motive behind the earthquakes, since the satellite does not have active tectonic plates.
Some researchers believe that occurrences may be related to tidal activities on Earth, which are caused by lunar attraction. However, this theory is inconclusive, as maritime forces affect the Moon as a whole, but tremors occur in specific places.
Source: Megacurioso
Http://www.astrobin.com/full/276273/0/?nc=

[Charic]

Wow!

[John]

Lovely image of one of my favourite parts of the lunar surface. You have captured the area of the Apollo 15 landing site excellently !

 

[Charic]

astroavani.............get closer!
I have no idea where anything is on the Moon (Apollo sites)  as its not my specialty  at this time, but there's plenty of time to learn!

Is it possible to see anything left behind John. 

[John]

7 minutes ago, Charic said:

...Is it possible to see anything left behind John. 

No. The largest object left on the surface is around the size of a small car. The best resolution we can see with our scopes is probably around half a kilometer.

NASA's Lunar Reconnaissance Orbiter can resolve such details though:

https://www.nasa.gov/mission_pages/LRO/news/apollo-15.html

[astroavani]

Thanks for the comments!
Expensive John actually in the previous photo of Vallis Alps I managed to get close to 300m. I think bigger telescopes get a little more. But any object left on the Moon by man is completely out of our reach.

[nightfisher]

words fail me, this is a truly fantastic image, thank you for sharing and keep them coming

[michael.h.f.wilkinson]

Superb detail again. On my C8 I manage about 400m per pixel or a resolution of 800m under good seeing. Only lunar orbiters can see the stuff left behind, including tracks made by the astronauts and the lunar rover

[michaelmorris]

That's a great picture.

[Ruud]

A wonderful image and a cracking bit of info. This scene looks like its built up tensions may have been relieved already.

Thanks!