A simple research on a Bob Lazar claim

I was checking to see if i could get more info on Bob Lazar and found below Reddit post:

https://reddit.com/r/UFOs/comments/kj3ek7/theres_a_42m_documentary_on_amazon_prime_that_bob/

According to Lazar himself, (go to 4:34) in May of 1987, some scientists took an antimatter reactor to an underground blast facility on the Nevada Test Site to perform an experiment. Their experiment went wrong, caused an explosion and this explosion was explained to others at the test site as a previously unannounced low-yield underground nuke test.

I checked the historic nuke tests and earthquakes from USGS website, you can also see below:

https://earthquake.usgs.gov/earthquakes/map/?extent=36.45664,-117.45209&extent=37.86836,-114.99115&range=search&showUSFaults=true&baseLayer=satellite&timeZone=utc&settings=true&search=%7B%22name%22:%22Search%20Results%22,%22params%22:%7B%22starttime%22:%221987-04-25%2000:00:00%22,%22endtime%22:%221987-06-02%2023:59:59%22,%22maxlatitude%22:39.809,%22minlatitude%22:36.935,%22maxlongitude%22:-113.928,%22minlongitude%22:-119.202,%22minmagnitude%22:1,%22orderby%22:%22time%22%7D%7D

I looked for above 1 magnitude earthquakes between 1987-04-25 and 1987-06-02 in Nevada Test Site area (which is very close to Area 51 and purported location of S-4) to corroborate Lazar’s claims. As you can see from the data there were no nuke tests during May 1987 in this area. We can assume that the information of such blast would not be disclosed by the US government but the USGS would still pick-up the earthquake caused by the blast and would record it, there are also no record of an earthquake in this area during May 1987.

We only see an official nuke test (Hardin) on 1987-04-30 and a few hours later a small M 3.3 & 1.4km depth earthquake close to it, on a location that has no faults, maybe this is the earthquake caused by the reactor blast? There is also a chance that they also removed the earthquake record from the databases. Or maybe Bob Lazar is not exactly telling the truth at all.