Earthquakes in SF are definitely not rare: "There is a 63% probability of at least one magnitude 6.7 or greater quake, capable of causing widespread damage, st

Earthquakes in SF are definitely not rare: "There is a 63% probability of at least one magnitude 6.7 or greater quake, capable of causing widespread damage, striking somewhere in the San Francisco Bay region in the next 30 years." Source: http://www.earthquakesafety.com/earthquake-faults.html http://www.earthquakesafety.com/earthquake-faults.html And I would say it is not true that most of the value is in the land. Even if it is 50/50 between land/house, losing 50% of your investment when the house is destroyed is still a terrible prospect...