ESA freely distributes all data acquired by the Sentinel program from here: https://scihub.copernicus.eu/ There are also multiple partner sites with the data, including cloud providers that can you a VM with the data files already mounted.

Software is a bit harder, for simple interferograms of two measurements you can just use open source Sentinel-1 toolbox ( https://github.com/senbox-org/s1tbx ) to align, diff, subtract geometric corrections based on an elevation model and convert the measurements to geographic coordinates. This will be enough for seeing large scale motion, like earthquakes. For better quality processing you need multi-temporal InSAR which can estimate atmospheric phase delay, height of persistent reflectors which will cause a geometric phase difference due to slight differences in measurement location (measurement baseline). There is some open source software available for this (e.g. StaMPS), but I can't vouch for its capabilities.

JPL releases some of their products of earthquakes/disasters world wide here: https://aria-share.jpl.nasa.gov/

Also a group a Leeds is trying to make a public portal: https://comet.nerc.ac.uk/COMET-LiCS-portal/

Neither place seems to have the recent Nevada earthquakes though.

There's a bunch of effort to make InSAR more available/accessible. Even though plenty of SAR data is available through ASF (https://search.asf.alaska.edu/#/), it takes a bunch more processing beyond the SAR images to get useful ground deformation.

ASF has also started to try providing some interferograms (single InSAR images) but without averaging a bunch over an area, or doing more advanced stuff, they often look like mostly noise on a given day.

The following can be used to process InSAR data: https://github.com/isce-framework/isce2

An update is in progress: https://github.com/isce-framework/isce3