首页
登录
职称英语
One pertinent question in the wake of the earthquake near Aceh (亚齐省) and the
One pertinent question in the wake of the earthquake near Aceh (亚齐省) and the
游客
2024-06-07
25
管理
问题
One pertinent question in the wake of the earthquake near Aceh (亚齐省) and the tsunami (海啸) it generated is how much notice of an approaching wave can be given to vulnerable people without the risk of crying "wolf" too often. Earthquakes themselves are unpredictable, and likely to remain so. But detecting them when they happen is a routine technology. That was not the problem in this case, which was observed by monitoring stations all over the world. Unfortunately for the forecasters, although any powerful submarine earthquake brings the risk of a dangerous tsunami, not all such earthquakes actually result in a big wave, and false alarms cost money and breed cynicism.
On top of that, most "tsunamigenic" earthquakes, which are caused when the processes of plate tectonics force heavy, oceanic crustal rock below lighter, continental rock to create a deep trench at the bottom of the sea, occur in the Pacific, which is almost surrounded by such trenches. In the Indian Ocean, deep trenches are confined to the southern coast of Indonesia, and tsunamis are rare. Since most of the countries affected by this tsunami are poor, or middle income at best, and monitoring costs money, this might suggest that a fatalistic approach to the question is reasonable. But American and Japanese experience suggests that effective monitoring need not be that expensive. These two countries have networks of seabed pressure detectors that can monitor tsunamis and indicate whether and where evacuation is necessary data they share with their Pacific neighbours. A system of seven detectors, run from Hawaii, cost about $18m to develop, and the experience gained doing So means a similar system might now be set up for as little as $2m. So, to the sound of stable doors being bolted firmly shut, politicians in South East Asia and Australia are proposing one for the Indian Ocean;
Even if you have an effective detection system, though, it is useless if you cannot evacuate a threatened area. Here, speed is of the essence. Computer modeling help shows which areas are likely to be safest, but common sense is often the best guide: nm like the wind, away from the sea. Evacuation warnings, too, should be easy to give as long as people are awake. Radios are ubiquitous (无所不在的), even in most poor places. It is just a matter of having systems in place to tell the radio stations to tell people to run. The problem was that no one did. [br] What is the troublesome problem to the forecaster?
选项
答案
It is hard to tell disastrous submarine earthquake
解析
参见第1段倒数第4至2行:although any powerful submarine earthquake brings the risk of a dangerous tsunami,not all such earthquake actually result in a big wave。
转载请注明原文地址:https://tihaiku.com/zcyy/3624066.html
相关试题推荐
【S1】[br]【S8】question→questions一致问题。anumberof修饰可数名词,在这里question应当用复数。
【S1】[br]【S9】question→questions用词不当。由of后面的adults可知此处question应用复数形式。
[originaltext]M:Excuseme,doyoumindansweringafewquestions?W:No.M:Um
[originaltext]M:Excuseme,doyoumindansweringafewquestions?W:No.M:Um
【S1】[br]【S3】its→theirtheir指代复数名词earthquakes。指代错误。
[originaltext]M:Whathappenedatyourfarmwhentheearthquakepassed?W:Oh,
Thekeytothesequestionsistheemotionalresponsewecallanxiety.Unlike
Thekeytothesequestionsistheemotionalresponsewecallanxiety.Unlike
Thekeytothesequestionsistheemotionalresponsewecallanxiety.Unlike
[originaltext]W:Excuseme,doyoumindansweringafewquestions?M:No.W:Fi
随机试题
[originaltext]TodayI’mgoingtodiscusstransportationandcommunicationi
[originaltext]Acontroversialdebateoverwhethertochangetheuppertimeli
文化主管部门审批营业性演出活动,应当核验该演出经纪机构申请营业性演出许可证时所提
施工现场在特殊场所使用的照明应使用安全电压,下列关于施工现场照明使用的安全电压值
寒湿痰浊停肺咳嗽的特点是()A.阵发性痉挛性咳嗽 B.咳声不扬痰黄稠
1.题目:四年级《大雁湖》片段教学 2.内容: 3.基本要求: (1)
296.()制度是严格党内生活,增强党员意识,提高党性修养,纯 洁党员队伍,
自我提升可能是一种被打上“生物遗传”与“基因性状”烙印的心理现象,它因具有潜在的
通过生理过程的自然吞噬使药物选择性地浓集于病变部位的靶向制剂称为A.被动靶向制剂
根据九部委发布的《标准勘察合同》,以下有关合同文件效力由大到小的排序正确的是(
最新回复
(
0
)