--Yuval Noah Harari in Sapiens: A Brief History of Humankind, 2015, p74.
“Is there any worse soil in Portland that we could have built on?” she asked.
Wang, an engineer with Oregon’s Department of Geology and Mineral Industries, known as DOGAMI, wrote a report in 2013 that said an earthquake could cause this ground to liquefy, as she had just now demonstrated.
“The risk here is extreme,” she said. After an earthquake, “within 10, 20 seconds, the sand will turn into a thick, sandy soup.”
And that would be bad.
Soil liquefaction, as it’s known to geologists, can exacerbate shaking and destroy roads, buildings and underground pipes. If that happens in Portland, it could devastate supply lines for fuel, electricity and natural gas. It also could mean a major chemical spill into the Willamette River.
What exactly is the problem?
Oregon’s petroleum reserves, along with substations, key pipelines and natural gas storage, are highly concentrated in one stretch along the Willamette River. Scientists now know that stretch of land poses a higher seismic risk than other parts of the city.
DOGAMI modeling for a magnitude-9 earthquake shows most of the petroleum tanks in that area sit on soils the agency considers to have a medium to high probability of liquefaction. The area also is predicted to have very strong shaking.
Read all about it here:
READ ALL ABOUT IT
The government's Flow Rate Technical Group estimates that the BP well is now leaking 35,000 to 60,000 barrels a day into the Gulf of Mexico, the Interior Department said in a statement. Last Thursday saw the release of three preliminary estimates of the flow from before the well's riser pipe was sheared, ranging from 12,600 to 50,000 barrels a day. Initial estimates of the flow were 5,000 barrels of oil a day.
6/16/10 update: Hightower on BP's record of willful and egregious violations of safety code, and on their CEO with a big mouth: http://www.jimhightower.com//node/7171
This is a bit of general advice I gleaned from living through the utter anarchy that followed the earthquake, in no particular order. I write this in the hopes that it helps someone someday.
( ADVICE, not mine, but I agree, not that I act )
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