Earthquake season in Cali?
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Anonymous
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Is there such a thing?
Because there was a 6.6 quake yesterday and a 7.1 tonight. 
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Anonymous
| There is no season. There are constantly earthquakes. |
Anonymous
How terrifying. |
Anonymous
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This caught my attention because thinking in terms of the earth's mantle and plates I thought not, but then wondered if position in the orbit (nearer to sun or farther) or other factors could actually create a season. And it turns out that there is one in the Himalayas having to do with the end of monsoon season and the pressure of accumulated water (consider things like Oklahoma's fracking-caused earthquakes, or how glaciers if big enough exert pressure on land masses).
California probably doesn't undergo the extremes of water--we're talking the Ganges, with probably much more massive amounts of water, the specific geology of the region--but anyway earthquake seasons can occur. https://www.livescience.com/4800-reason-earthquake-season-revealed.html |
Anonymous
| I’m in SoCal. No, they are not constant. At least not the ones you feel. We all felt the one yesterday and tonight. Like bring on a boat. And yes, scary knowing it could be worse. |
Anonymous
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Anonymous
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Yesterday's quake was a 6.4. Today's was a 7.1. The San Andreas movie was literally about a quake that started as a 7.1 and went to a 9.1! O.O
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Anonymous
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^^ and. . . possibly California as well, and also related to groundwater.
https://phys.org/news/2018-06-south-napa-earthquake-linked-summer.html Sometimes it's worth searching online for the answer to what seems like a silly question! |
Anonymous
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This last one, just a few minutes ago, lasted forever - but not strong on the west side of LA.
The little ones are good for us. Relieves the pressure. |
Anonymous
I was googling the Ring of Fire to see if there was a season for that but it seems like volcanoes and quake activity are omni-present somewhere on the ring year-round. The giant quake that triggered the 2004 tsunami which killed 200,000+ people in Eastern Asia was in December... |
Anonymous
Or serve as a warning for larger quakes coming. People keep referring to them as 'aftershocks' but you have to have had a major earthquake for them to be following behind... |
Anonymous
| Yesterday’s was a “preshock” to today. Scientists said there was a 1/20 chance there would be a bigger one today. The aftershocks going forward should be smaller. |
Anonymous
Funny, that's not what I read. Top seismologists say California is due for 8.0 earthquake or greater. They haven't had one in the past few decades and its supposed to arrive on a 100-year cycle. https://www.theguardian.com/world/2019/jul/05/earthquakes-southern-california-seismologist-ridgecrest For southern California, it works out to something close to a magnitude 8 every 100 or 200 years, a magnitude 7 about every 20 to 30 years, and a magnitude 6 every three years. The bigger earthquakes are much less frequent than the smaller ones. This is the first magnitude 6 quake in 20 years. It’s the longest interval we’ve ever had. We also saw the rates of 5s and 4s and 3s go down. Is that just random fluctuation? Potentially. We had 20 years that was a particularly quiet time, and what we don’t know is, was that an actual change in rate and now we’re going to go back to a higher rate or was that just random clustering? Either way, we know that the last 20 years was abnormal and that’s not our long-term rate, and we should expect more earthquakes than we’ve been having recently. Chances are, we’re going to have more earthquakes in the next five years than we’ve had in the last five years. |
Anonymous
https://www.latimes.com/local/lanow/la-me-ln-did-california-earthquake-relieve-earthquake-stress-20190705-story.html |
Anonymous
| Tangent. Gina Rodriguez is so pretty. |