Im in Mountain View and I can tell you that at least half of the problem is shoddy construction. East Coast houses are made to keep out weather and West Coast houses are made not to hurt when they fall on you.
And this issue is going to make someone a billionaire in the future. Urbanization is well under way and people are only getting noisier and more crowded.
Also, another area for huge improvements is in the legal system. Basically you're screwed if you have noise issues due to anything "normal" - e.g. music, talking, babies...etc.
West Coast houses are made not to hurt when they fall on you
True, they're junk. In most places it would be smarter ot make them out of brick, and the chances that they'll fall on the occupant are very low indeed. Some of the oldest (pre 1906) houses in SF are made of brick, ditto in Oakland.
As it turns out, brick buildings are much more prone to complete collapse than wood houses during earthquakes, owing to the greater flexibility of wood.
Or are you making the argument that that conventional professional wisdom is incorrect?
Unreinforced brick will indeed fall down in even modest earthquakes. In new construction it is possible to sink rebar into the wall, at which point it is at least the equal of concrete (and certainly more attractive); however a lot of people don't want to bother with perceived time and expense and so we go back to concrete and stick framing.
Much construction in California is penny wise and pound foolish. It is routine to omit insulation from the walls in new construction, never mind that it will pay for itself in savings on heating and cooling bills. Wooden houses can be destroyed in an earthquake if the quake shakes them off their foundations; fixing this is simple and easy during construction but, again, wasn't done for a long time. I believe the only reason it is done now is code requirements—it would not overly surprise me to learn that the builders can't be bothered even in new construction.
It's not really the flexibility. Masonry is strong in compression, but heavy, and relatively weak in tensions. It tends to crumble under its own weight.
But yes - brick is good in a hurricane, but a death trap in a quake..
In Europe pretty much any old house is made out of brick. They've been through many earthquakes, built hundreds of years ago and still standing; and this is without reinforcement.
"In Europe pretty much any old house is made out of brick."
Depends on what is the most easily available building material - here in Scotland pretty much all old buildings are made of stone (everything from small houses up).
NB Speaking of making things from stone - the 5000 year old village of Skara Brae even has remaining furniture made of stone:
Probably wouldn't want to live in one during a strong 6+ earthquake, but they are pretty handy during a hurricane. If you can manage to make the roof stay put.
The reason the pre-1906 buildings are made of brick isn't that brick is superior for surviving earthquakes, but that much construction of the time was brick, and that which wasn't was wood. And most of the destruction of the 1906 quake came from the fire which followed it.
So the only structures which could survive were brick and masonry.
Most of those brick structures have been very significantly reinforced over the years. And if you've ever been next to a brick wall as it's bulging in and out as S waves pass by, you'll likely reconsider your argument.
Steel cage buildings are far preferable to either, from a survivability standpoint.
I lived in a California Craftsman house for a few years, and plaster-on-lath construction on the inner walls was great. The higher density & mass of the material masked sound better than drywall, but also provided additional thermal mass so very little AC was required for most of the season. Just circulate outside air at night to cool the house, and close up the windows in the morning to stay cool for the day.
Modern tech exists for good acoustics, it's simply a matter of cost - houses near areas that need noise-abatement routinely get fitted with it, but developers are cheap and will skip it if at all possible.
If your landlord shows you your apartment at 2pm while everyone is at work (or only shows a model unit) and you move in and can hear every footstep your neighbor takes and your neighbors coughing in bed at night, there should be easier ways than currently exist to solve that problem.
In the future I think every apartment will come with a noise disclosure of some sort, detailing expected noise levels throughout the day. And I think people will probably be made to sign noise agreements to join buildings..etc.
And this issue is going to make someone a billionaire in the future. Urbanization is well under way and people are only getting noisier and more crowded.
Also, another area for huge improvements is in the legal system. Basically you're screwed if you have noise issues due to anything "normal" - e.g. music, talking, babies...etc.