An earthquake in an specific region or area won't have any impact over Bitcoin's prominence in the mainstream world.
I agree with your opinion. If a natural disaster hits a country on a large scale such as an earthquake and Tsunami that causes many access road and building to collapse, then only that country will feel an immediate impact on its economy unless the disaster hits the United States. If the US economy collapses then I believe there will be a clear impact on bitcoin.
Covid-19 can also be categorized as a disaster that hit the whole world, but during that time bitcoin has become an asset that has received the attention of many investors so that the price continues to rise. Covid-19 has affected the economies of almost all countries because many people lost their jobs, access to cross-border transportation was restricted, businesses went bankrupt and many other impacts. But bitcoin has emerged as the primadonna in the Covid era and its price has soared to almost reach ATH. Is it because the US economy is strong enough or is there anything else that seems to make bitcoin an asset that can withstand a pandemic situation ?