Highest inflation is not good for anyone. Earthquakes mean less people so less consumption and demand will fall and price will fall. Earthquakes destroys inflation. When human beings become useless, God has to takeover to end good and hard working people's sufferings.
Earthquakes would mean more inflation I think though. For instance.... Lets say you have 10 people who each have 100 dollars. An earthquake kills 3 of those people so the 3 that died now have their 100 split between the 7 left over. So now each person alive has 142.85. Now that they have that extra money,they are going to spend it...earthquakes also destroyed alot of farms so there is less food to buy. So...what happens when people have a lot of extra money chasing few goods? Thats right...inflation.
Japanese government will destroy and rape its own citizen's saving. This earth quake give it a opportunities to monetary its debts load. They want inflation so bad for last 20 years, government has tons of debts on its balance sheet. If they don't want its currency strengthening, they will have to buy more US long term debts, which is perfect for US.