主题:茗谈(100):第二长城 -- 本嘉明
1700年,太平洋上卡迪亚断层带(Cascadia Subduction Zone)曾有一次超强地震,专家估计下一次快来了,甚至是已经延误(over due)了。
此震再来,则太平洋东岸,北到加拿大,南到南加州,都会受大海啸摧残。由于美国人民乐观向上,从来没有像日本那样做抗登陆准备,所以损失肯定比日本的312更大。
美联社报道:
Coastal towns would be inundated. Schools, buildings and bridges would collapse, and economic damage could hit $32 billion.
The chilling report by the Oregon Seismic Safety Policy Advisory Commission was presented Thursday to Oregon legislators.
In 2011, the Legislature authorized the study of what would happen if a quake and tsunami such as the one that devastated Japan hit the Pacific Northwest.
The Cascadia Subduction Zone, just off the regional coastline, produced a megaquake in the year 1700. Seismic experts say another monster quake and tsunami are overdue.
"This earthquake will hit us again," Kent Yu, an engineer and chair of the commission, told legislators. "It's just a matter of how soon."
When it hits, the report says, there will be devastation and death from Northern California to British Columbia.
Many Oregon communities will be left without water, power, heat and telephone service. Gasoline supplies will be disrupted.
The 2011 Japan quake and tsunami were a wake-up call for the Pacific Northwest. Governments have been taking a closer look at whether the region is prepared for something similar and discovering it is not.
Oregon legislators requested the study so they could better inform themselves about what needs to be done to prepare and recover from such a giant natural disaster.
The report says that geologically, Oregon and Japan are mirror images. Despite the devastation in Japan, that country was more prepared than Oregon because it had spent billions on technology to reduce the damage, the report says.
Jay Wilson, who works for the Clackamas County emergency management department and is vice chair of the commission, visited Japan and said he was profoundly affected as he walked through villages ravaged by the tsunami.
"It was just as if these communities were ghost towns and for the most part there was nothing left," he said.
Wilson told legislators that there was a similar event 313 years ago in the Pacific Northwest, and "we're well within the window for it to happen again"
-- The Associated Press
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🙂茗谈(100):第二长城 20 本嘉明 字4981 2013-03-04 23:55:45
🙂美国俄勒冈州的海啸警告报告
🙂如此巨大复杂的结构,到时候来得及吗? 2 時千峰 字441 2013-03-08 04:57:11
🙂半小时肯定不够 本嘉明 字816 2013-03-08 10:17:56
🙂24--50h的预警时间? 2 時千峰 字479 2013-03-09 08:12:47
🙂这个预警时间50小时 本嘉明 字712 2013-03-09 22:28:56
🙂人为引导小行星入轨角度和地点,预警时间极短 迷途笨狼 字318 2013-03-11 09:00:07
🙂茗谈(100)-2 9 本嘉明 字3698 2013-03-06 12:12:04