Reply to this nonsense is unworthy of my time.
LOL! So what the USGS says is nonsense? So the historical record on the largest quake in recorded history is nonsense? I see …
Well that was easy. You only need go back to 1930 when a measly 5.2 quake caused an 18 foot tsunami to hit Santa Monica.
LOL! The source you quote states that "In California, a magnitude 5.2 earthquake in 1930 off of Redondo Beach is thought to have caused a landslide that generated a six-meter (about 20 ft.) wave." Let's see if we can find any corroboration of that claim.
NOAA's West Coast and Alaska Tsunami Warning Center website (
http://wcatwc.arh.noaa.gov/web_tsus/19300831/runups.htm ) states the amplitude of the 1930 tsunami was 3 meters in Santa Monica and Venice. In Redondo beach they apparently aren't even sure. And there is a big difference between 3 meters and 6 meters in the topography of Redondo and Santa Monica in terms of the damage that would be done.
Here's another source (the Santa Monica Daily Press) that says the 1930 tsunami was only 3 meters high:
http://www.smdp.com/pdf/122904.pdf
The tsunami that hit the Santa Monica Bay on Aug. 31, 1930 was triggered by a 5.2-magnitude earthquake. It produced waves measuring nearly 10 feet high
Now you'd think Santa Monica's papers would get this right.
By the way, know what the elevation of Santa Monica is? Once you get away from the beach, it quickly climbs above 10 feet … or even 20 feet, at least in the northern part of the city. In fact, city hall is between 60 and 80 feet above sea level.
Now Venice Beach would be in more difficulty because it has a big marina and the region around that marina is relatively low. But most of it is still above 10 feet too. Here, the red line in this (
http://www.conservation.ca.gov/cgs/...Tsunami_Inundation_Venice_Quad_LosAngeles.pdf ) is the area CEMA worries about. As you can see, Santa Monica is certainly not the problem.
And what are you proposing we do about this grave threat? The fault is so close that there would only be a few minutes between quake and arrival of a wave. It's not enough time to do much, so are you proposing we build a tall wall any place we have a fault in the ocean right next to a city? How exactly is that going to work to protect the Marina Del Rey harbor? Are you envisioning locks to get in and out?
And by the way, what's the frequency of quakes on this fault? Do we even know? Perhaps it's many hundreds of years in which case worrying about this is rather silly.