Well, you could go to the website where they clearly state that some data is reviewed before publication and may be removed or modified. It is a frequently asked question. Or you could find an obvious counter-examples in the data, since it is public. The detection and flagging of anomalous events for review has been automated for decades, also publicly mentioned. I don’t assume everyone knows, I’ve been working with government sensing data for 20 years, but they are quite explicit if you look.
What they remove is a secret AFAICT but if you are an expert in the sensing modality it becomes obvious what should be in the data but isn’t. There are now businesses that specialize in differentially finding or reconstructing things that have been removed or modified in sensing feeds, so the effectiveness has diminished greatly.
Less flippantly, I literally went to the USGS FAQ to find this question https://www.usgs.gov/faqs/does-latest-earthquakes-map-show-n... where it says mining events are not reviewed, but if they are identified, they are still included! So ... I'll ask more explicitly:
Can you provide an explicit LINK to anything that supports your claim? Thanks.
