Please take a moment to fill out the USGS "I felt it" form:<p><a href="http://earthquake.usgs.gov/earthquakes/eventpage/nc72282711#dyfi_form" rel="nofollow">http://earthquake.usgs.gov/earthquakes/eventpage/nc72282711#...</a><p>Especially if you don't live in the Bay Area, since they'll want to know the falloff curves for it.<p>(You can fill out the form even if you didn't feel it. They need that data too.)
There's nothing quite like an earthquake to make you feel mortal.<p>Growing up in Wellington NZ we were always taught to expect and prepare for the 'big one', it was just part of life. Sometimes they completely come out of nowhere though, hitting places that are unprepared and often unaware that they are susceptible to seismic risk. This happened in Christchurch NZ in 2011 [1]. I'm not sure about the Valley, but there is nothing scarier than a new fault opening up.<p>[1] <a href="https://en.wikipedia.org/wiki/2011_Christchurch_earthquake" rel="nofollow">https://en.wikipedia.org/wiki/2011_Christchurch_earthquake</a>
I'm curious about possible coupling between the ongoing drought in the western US and seismic activity.<p>There is published work indicating correlations between rainfall and seismicity (1) and rainfall and volcanic activity (2). There's other work relating seismicity to fracking, filling the Oroville reservoir, etc.<p>A study (3) this week indicated a median land uplift of 4mm ranging up to 15mm uplift in some California mountains due to a mass deficit of 240Gt of missing rainfall since 2013.<p>I wonder if the drought-related uplift could alter underground strain patterns enough to influence earthquake frequencies or magnitudes? Any geophysicists wanna weigh in?<p>(1) <a href="http://www.geophysik.uni-muenchen.de/~igel/PDF/hainzletal_grl_2006.pdf" rel="nofollow">http://www.geophysik.uni-muenchen.de/~igel/PDF/hainzletal_gr...</a>
(2) <a href="http://envam1.env.uea.ac.uk/matthewsetal2009.pdf" rel="nofollow">http://envam1.env.uea.ac.uk/matthewsetal2009.pdf</a>
(3) <a href="http://www.sciencemag.org/content/early/2014/08/20/science.1260279" rel="nofollow">http://www.sciencemag.org/content/early/2014/08/20/science.1...</a>
And this shows us why it is a bad idea to have a large portion of the worlds digital infrastructure in a place which will destroy it sometime in the next century.<p>Put it in the middle of the Australian outback, nothing's happened there for a billion years, nearly literally.<p>To the people down voting me: please explain why you think it's a good idea to put our digital infrastructure in a place which might well be destroyed in an afternoon when it can be put quite literally anywhere.
According to my wife, she woke me up and kept shouting "earthquake!" I was rolling around on the bed. I just grabbed her pillow, covered my head and muttered, "OK. Let's go back to sleep".
Check for gas leaks!<p><a href="http://www.totallyunprepared.com/turn-off-gas-earthquake/" rel="nofollow">http://www.totallyunprepared.com/turn-off-gas-earthquake/</a>
Out of interest, does anyone know what kind of disaster recovery plans big IT companies in Silicon Valley have if a really big one happens? The kind of earthquake where they lose both key staff members and core infrastructure?
Earthquakes really do scare me.<p>They are expecting a huge earthquake in my city and a recent analysis I read said if it happens (and happens in the magnitudes they are expecting) millions would die (not from the quake itself, but from not being able to get help, cold etc.). I believe in a case like that entire economy (and everything, really) of the country would fall irrecoverably for at least a 50 years.<p>Well, if it happens in the night, at least I won't be alive to see the effects of it. (My apartment is old and I live very near to the sea, so there is also the risk of tsunamis. YAY!)
You can read about the implications of a harder Cascadian earthquake on SF here: <a href="http://crew.org/products-programs/cascadia-subduction-zone-earthquakes-magnitude-90-earthquake-scenario" rel="nofollow">http://crew.org/products-programs/cascadia-subduction-zone-e...</a>.
I lived through the Loma Prieta earthquake 6.9 and the San Simeon earthquake 6.5. Both times my house was about a dozen miles from the epicenter. We suffered no damage at all, not even things falling off the shelves. At the time of the Loma Prieta earthquake we lived in a forest of 100 foot pine trees. The ground and streets were covered with the tips of the branches of the pine trees.<p>The moral of the story is, if you are going to live in earthquake country, live in a well constructed wooden house on top of a mountain, or at least solid rock.
Probability Report by the Northern California Seismic System (NCSS)
[Operated by UC Berkeley and USGS]<p><a href="http://i.imgur.com/qyVI3vv.png" rel="nofollow">http://i.imgur.com/qyVI3vv.png</a>
This is a silly question but as someone who lives in a place that will never experience an earthquake can someone explain to me why they are so dangerous? I get that things can fall over/collapse but in areas such as CA aren't buildings structured to survive an earthquake? Don't you secure large objects (cabinets etc.) to the walls?
As I understand it the most dangerous fault in the area is the Hayward-Rogers which is historically due for a major quake. So the question is did this quake add or release pressure on that fault as it sits around 7 miles away (the epicenter).
Sad Truth: No local channel has woken up to it, only 1 Breaking news banner in KPIX Channel 5 but others are busy playing late night informercials. How do people using no HN, twitter, facebook etc get updates?
Definitely felt it. Thousands of people without power in the North Bay:<p><pre><code> http://www.pge.com/myhome/outages/outage/</code></pre>
Could this havê been triggered by the drought? Just a couple days back it was mentioned the loss of groundwater has made the crust rise a couple inches.
What is going on with all this geologic activity?? SESH!! first iceland, then chile, and now the bay area?? This has gotten me a little shaken up, I won't lie.<p>Hope everyone is okay. Be sure to have an evacuation plan with your significant others and expect aftershocks.
I felt it I was awake listening to music on my phone and I felt my bed shaking and I paused then looked at my baby's crib and it was moving side to side since we have tile floor it made the crib literally move and our bed was moving the key hanger were the keys are hanging were moving hard hitting against the wall I've never felt anything before like that this was my first time feeling this and it sucked a lot because I was the only one awake at home my husband and baby were asleep 💔😲😨
Felt it here in lower Nob Hill! Lying half asleep wondering why my blinds were clacking against each other, then felt the entire room start to shake, very surreal.<p>I actually got up and walked around this time. Last time I felt an earth quake was 3 years ago in NJ and that was <i>super</i> weird.<p>Feeling a little spoiled with these Earthquakes! Only moved here a few weeks ago.