Relevant Google Scholar link to what he did during the last 20 years:<p><a href="https://scholar.google.com/scholar?q=novikov+earthquake&hl=fr&as_sdt=0%2C5&as_ylo=2000&as_yhi=2020" rel="nofollow">https://scholar.google.com/scholar?q=novikov+earthquake&hl=f...</a>