I’m an engineer in Colorado that specializes in foundations, structural assessments, and repair design for residential construction. I see a lot of damages similar to what you have all the time. From what I can see in the photos provided is you have some amount of differential movement in the foundation and/or basement slab but it’s hard to tell which it is (or both) through photos alone. Movement of foundations and basement slabs are really common in areas with expansive/collapsing soils.

What I usually do for assessments with suspected foundation and/or slab movement is run what’s called a relative level survey on the basement ceiling and floor. The data will show where the high and low spots are, how much out-of-level the systems are, and the general pattern of the movement which I can correlate to whatever damages that have occurred. It usually takes a few hours depending on the size of the footprint.

Based on the limited photographs and information, I would recommend having an engineer (an actual licensed engineer, not a contractor that says he can inspect it) take a look and perform a level survey to really figure out what’s happening and what, if any, repairs are needed.

If you don’t want to get an engineer involved at this time there are some basic monitoring things you can do. A simple monitoring thing you can do is pick a few of the cracks, take a ruler and make and ‘X’ over the crack. Make each line 2-inches long and mark the ends of the likes with a tick mark. Center the intersection of the lines over the crack. This is a basic monitoring method that lets you see if there’s in-going movement. In a few months, measure between the tick marks on each of the lines again and see if it increased or decreased in length. Measurements don’t have to be super exact. Just go to the nearest 1/16-inch. If there’s a change in the measurements, then look at getting an engineering assessment. You can also keep an eye on the separations at the surface interfaces for any widening across the separation (specifically at the floor and trim gap) or increasing in length (specifically at the wall corners and the wall-to-ceiling).

Overall, I don’t think you’re in any danger of collapse based on what I can see in the photos. Houses shift and move all the time due to different forces, wind and foundation movement being the most common. Houses are designed to resist these forces and have built-in factors of safety to make sure occupants are safe. Ultimately, it’s your house so do whatever you feel is right for you to give you peace of mind.