San Andreas concerns
- Thread starter Silent Earth
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I've spent a few weekends overlooking at a plant 10 -15 klicks away and I still have to use a torch at night
but we don't have those fault lines here,which makes me a happy camper.
The Norwegian fiords have a long history of creating mega tsunamis via huge landslides that have devastated much of the northern UK and Norway in ancient times, if their any fiord type things on or opposite the Finnish coast then you to are vulnerable. Also IIRC Sweden and Finland are growing in altitude by up to 100mm a year in places as an effect of the receding glaciers from the last ice age that compressed the last down by many hundreds of meters, Ologists say at some time this will cause sub sea landslides that could again cause local tsunamis.
as we know from our ancient history, the Somerset coast and "the levels" have been flooded by tsunami's before and will be again, makes me wonder why they ever built Hinckley Point there in the first place, don't planners study history?
nah,we don't have any of those fjords here,mostly low coast line,it's been rising for thousands of years by now and continue to do so.
it's a pain if you have your sauna a perfect sweet spot and the water goes back by several feet
history isn't something planners read or study,their attentionspan isn't made for that.
it's a pain if you have your sauna a perfect sweet spot and the water goes back by several feet
history isn't something planners read or study,their attentionspan isn't made for that.
San Andreas doesn't cause tsunami's swarms happen all the time just that all these media reports give off speculations because of the hyper sense of reportings regarding EQs. The concern and it's only a 1% concern is that if a largest enough quake within the swarm that can trigger a quake in L.A. that may cause extensive damage.
From Lisa,
The biggest events are repeats of the 1700 M9 Cascadia quake, and repeats of the M8 1906 SF event and the M8 1857 quake near LA on the San Andreas. Odds of the M9 now are 15% per 50 years.
Some have speculated about a consistent pattern of which of 1700-type and 1906-type events can trigger the other, but that not certain.
There are smaller quakes of many varieties more often, with the smallest occurring every day.
swarms happen all the time just that all these media reports give off speculations because of the hyper sense of reportings regarding EQs. The concern and it's only a 1% concern is that if a largest enough quake within the swarm that can trigger a quake in L.A. that may cause extensive damage. From Lisa,
The biggest events are repeats of the 1700 M9 Cascadia quake, and repeats of the M8 1906 SF event and the M8 1857 quake near LA on the San Andreas. Odds of the M9 now are 15% per 50 years.
Some have speculated about a consistent pattern of which of 1700-type and 1906-type events can trigger the other, but that not certain.
There are smaller quakes of many varieties more often, with the smallest occurring every day.
I'm thinking more about the not so powerful quakes but the intensely localised events such as the one in 64 that ripped Anchorage ( I think) apart and created a localised tsunami somewhere along the coast that reached hundreds of meters up the hillside.
