Strongest earthquake in years rattles Southern California • Hacker News Board

Re: Strongest earthquake in years rattles Southern California

#81

Post by Gibbon1 » Thu, Jul 04, 2019, 10:27 PM UTC

Zafira wrote: post #11

cgoecknerwald wrote: post #5

"Only 10 percent of California's 7 million plus homeowners have earthquake insurance – and the number has dropped by more than half since the deadly quake" (2014) You can get an estimate for an earthquake insurance policy with the California Earthquake Authority. [1] https://www.nbcnews.com/news/investigations/why-do-so-few-ca... [2] https://www.earthquakeauthority.com/

I understand why people keep bring up earthquake insurance, but it's not that many of us haven't considered it. It can be expensive to the extent that you are better off reinforcing your home rather than spending any money on said insurance. "The expensive deductible related to earthquake insurance are sometimes as high as 15% of the value of the home, which has many homeowners giving the insurance a second thought."…

I think the general consensus is that you'd be better using your money to get a construction loan to brace and bolt your home to resist earthquakes. I was quoted $175/month for earthquake insurance. That translates into a $25-30k loan. You can do a lot of structural improvement for that.

Re: Strongest earthquake in years rattles Southern California

#82

Post by vram11 » Thu, Jul 04, 2019, 10:28 PM UTC

TremendousJudge wrote: post #68

otterley wrote: post #59

Earlier quoted context omitted.

They do, in fact! It's called reinsurance, and Gen Re (owned by Berkshire Hathaway) is one of the biggest issuers of reinsurance.

Alright, I'll bite. Does anybody issue insurance for the reinsurers?

Unfortunately not. It's not insurance all the way down. Turtles, on the other hand ...

https://en.m.wikipedia.org/wiki/Turtles_all_the_way_down

Re: Strongest earthquake in years rattles Southern California

#83

Post by peter303 » Thu, Jul 04, 2019, 11:49 PM UTC

The new early warning system did not trigger in L.A. Authorities said the projected damages wasnt big enough. The warning system is supposed to give seconds to tens of seconds of warning to turn off equipment and seek cover.

Re: Strongest earthquake in years rattles Southern California

#84

Post by mturmon » Fri, Jul 05, 2019, 12:19 AM UTC

iamtheworstdev wrote: post #65

benmarks wrote: post #49

Earlier quoted context omitted.

I think the term you're looking for is "liquefaction map" - I only know this term because we're exposed to the risk here in Charleston, S.C.: https://sf.curbed.com/2019/4/15/18311670/earthquake-map-cali...

That is scary to me. Should it be scary to me? In regards to liquefaction zones and earthquakes? I mean, i recently built a fence and the moisture in the ground made me conscientious of liquefaction when tamping for my gravel and posts, how does this play out for SF in an earthquake?

It should be scary. Soil liquefaction is one of the main failure modes of small structures in earthquakes. Take a look at the map for your area to know if it matters for you.

Re: Strongest earthquake in years rattles Southern California

#85

Post by enjoyyourlife » Fri, Jul 05, 2019, 12:24 AM UTC

Rebelgecko wrote: post #35

Not the submitter's fault, but I'm pretty sure the title is inaccurate

It's not. The last earthquake with a higher magnitude in California occurred in 2010. The title is just phrased wrong.

Re: Strongest earthquake in years rattles Southern California

#86

Post by futureastronaut » Fri, Jul 05, 2019, 12:58 AM UTC

benmarks wrote: post #49

dawhizkid wrote: post #38

I'm pretty sure much of SF (marina, south beach, mid soma) are partially built on landfills are considered "liquification zones" by the city.

I think the term you're looking for is "liquefaction map" - I only know this term because we're exposed to the risk here in Charleston, S.C.: https://sf.curbed.com/2019/4/15/18311670/earthquake-map-cali...

Parent used the correct term, a liquefecation map shows liquefecation zones.

Re: Strongest earthquake in years rattles Southern California

#87

Post by bshipp » Fri, Jul 05, 2019, 1:46 AM UTC

Gibbon1 wrote: post #81

Zafira wrote: post #11

Earlier quoted context omitted.

I understand why people keep bring up earthquake insurance, but it's not that many of us haven't considered it. It can be expensive to the extent that you are better off reinforcing your home rather than spending any money on said insurance. "The expensive deductible related to earthquake insurance are sometimes as high as 15% of the value of the home, which has many homeowners giving the insurance a second thought."…

I think the general consensus is that you'd be better using your money to get a construction loan to brace and bolt your home to resist earthquakes. I was quoted $175/month for earthquake insurance. That translates into a $25-30k loan. You can do a lot of structural improvement for that.

But...did you? Do the structural adjustments I mean.

Re: Strongest earthquake in years rattles Southern California

#88

Post by casefields » Fri, Jul 05, 2019, 2:56 AM UTC

reverite wrote: post #27

There's a few articles that go into a loosely defined faulting area dubbed the Walker Lane[1][2][3] in which it's theorized that the East Pacific Rise (a rift), under the Gulf of California, may be expanding directly north. I know some geologists were surprised at first at the 7.4 Landers earthquake in 1994, and the article goes into that the Walker Lane seems to follow US 395, so I wonder if this is just a continuin…

That was fascinating. Thanks for those links.

Re: Strongest earthquake in years rattles Southern California

#89

Post by dehrmann » Fri, Jul 05, 2019, 4:30 PM UTC

dawhizkid wrote: post #38

I'm pretty sure much of SF (marina, south beach, mid soma) are partially built on landfills are considered "liquification zones" by the city.

You probably meant "land fill," not "landfills." Only a handful of things are actually built on landfills in the Bay Area, and all the neighborhoods you mentioned are built on fill. There are ships under Soma, though.

https://news.nationalgeographic.com/2017/05/map-ships-buried...

Re: Strongest earthquake in years rattles Southern California

#90

Post by squarefoot » Fri, Jul 05, 2019, 5:14 PM UTC

schoen wrote: post #45

squarefoot wrote: post #17

Earlier quoted context omitted.

I don't know, but anyway... If you happen to be under dried chiles when they shake, be sure to keep your eyes closed because the pain could make an earthquake much more pleasant. Been there done that, and that pain lasted hours... ouch! On a more serious note, the anecdote might suggest that the earthquake produced very high frequency oscillations. Dried plants are relatively light and stiff so that a larger but slow…

> Been there done that, and that pain lasted hours... ouch! What an unusual form of earthquake injury!

Well, a fault was involved, although not a geological one:)

Read as: don't pick dried chiles directly from below, or at least close the damn eyes...