Why are they putting it in a region that has Earthquakes?
https://en.wikipedia.org/wiki/List_of_earthquakes_in_Romania
https://en.wikipedia.org/wiki/List_of_earthquakes_in_Romania
The NRC has looked at all these and they have given their approval
https://www.nrc.gov/reactors/new-reactors/smr/nuscale/ser-open-items.html
They have looked into earthquakes, what dangers they pose, what mitigands the design has against them, and in the end they decided the design is safe.
But if you want the actual details, you can go to section 19.1.4.8.1 Seismic Risk Evaluation in this document:
https://www.nrc.gov/docs/ML2020/ML20205L410.pdfEven your processor is "susceptible to meltdown events due to loss of cooling". It has some protection, of course, unless this reactor which does not exist even on paper.
> In the late 1990s, three additional backup diesel generators for Units 2 and 4 were placed in new buildings located higher on the hillside, to comply with new regulatory requirements. All six units were given access to these diesel generators, but the switching stations that sent power from these backup generators to the reactors' cooling systems for Units 1 through 5 were still located in the poorly protected turbine buildings. Meanwhile, the switching station for Unit 6 was protected inside the only GE Mark II reactor building and continued to function.[54] All three of the generators added in the late 1990s were fully operational after the tsunami. If the switching stations had been moved to the interior of the reactor buildings or to other flood-proof locations, power would have been provided by these generators to the reactors' cooling systems and thus the catastrophe would have been averted.[54]
Earthquake didn't did it, tsunami what flooded the generators which weren't moved/protected as ordered so (ie banal corruption) is what did it.
And the purposed location is far enough from the coast.
Fukushima Daini, which is on the same coast, with the same operating environment and was hit with the same wave - was shut down successfully.
EDIT: this is just an example what the earthquakes are not a big problem for a nuclear power stations.