中国青海发生6.9级地震

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Western Chinese province struck by 6.9 earthquake
(AP) – 55 minutes ago
BEIJING — A series of strong earthquakes struck China's western Qinghai province Wednesday, the U.S. Geological Survey said. There were no immediate reports of casualties in the remote rural area, though witnesses described houses quickly crumbling.
The USGS reported on its Web site that a magnitude 6.9 temblor struck an area in southern Qinghai, near Tibet, on Wednesday morning and was followed by two quakes in the same region.
The quake hit the county of Yushu, a Tibetan area in Qinghai, the official Xinhua News Agency cited the China Earthquake Networks Center as saying. The Chinese center measured the quake's magnitude at 7.1. A local government Web site put the county's population in 2005 at 89,300, a community of mostly herders and farmers.
The quake sent residents fleeing as it toppled many houses made of mud and wood, said Gasong Nima, the Yushu county television station's deputy head of news, speaking by phone with state broadcaster CCTV.
"In a flash, the houses went down. It was a terrible earthquake," the witness said. "In a small park, there is a Buddhist tower and the top of the tower fell off.
"Everybody is out on the streets, standing in front of their houses, trying to find their family members," he said, adding that school buildings had not collapsed but students had been evacuated and were assembled in outdoor playgrounds.
The epicenter of the first quake was located 235 miles (380 kilometers) south-southeast of Golmud, a large city in Qinghai, at a depth of six miles (10 kilometers), the USGS said.
Ten minutes later, the area was hit by a magnitude 5.3 quake, which was followed after two minutes by a temblor measuring 5.2, according to the U.S. agency. Both the subsequent earthquakes were measured at a depth of 6 miles (10 kilometers).
Calls to the local Communist Party office and the government of Yushu county and the Qinghai provincial seismological bureau rang unanswered.
In 2008, a magnitude-7.9 quake in Sichuan province left almost 90,000 people dead or missing.
On the Net:
U.S. Geological Survey: http://www.usgs.gov/
Copyright © 2010 The Associated Press. All rights reserved.

sooners

回复 1# ypm968


   

lucky99

回复 1# ypm968

Nothing special: that place is part of the active earthquake zone and is very close to the earlier quake in Sichuan.

See map:

lucky99

Now, my friend expained further for me:
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伤亡上万，专家称玉树地震与川震有关联

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中央电视台    2010-04-14 09:57:22


据中央电视台报道，专家指出，青海玉树县7.1级地震与四川汶川大地震有关联，中国大陆近期仍有发生6级地震的可能性。

中国地震台网中心预报部主任刘杰介绍，专家估计，经过青海玉树县7.1级地震后，中国大陆将进入一个比较活跃的时期，近期，中国大陆仍然有发生6级地震的可能性。

据悉，青海玉树这次地震发生的断裂带是甘孜-玉树-风火山断裂带，属于巴颜喀拉地块南边界，汶川地震属于巴颜喀拉地块东南边界。这个地区自1900年以来，200公里范围内没记录到7级以上地震，但有过5、6级地震的记录，相对来说该地区地震活动不是太活跃。

另据中国地震局原首席预报员孙士綋分析，青藏高原本身是多地震的地区，这个地区强地震活动多，分布上也比较散，很多专家也将这一地区称为“三江地震带”，这个地区地震分布大致沿着三条江分布，是活动水平比较高的地区。

对于此次地震与汶川地震的关系，孙士綋表示，可以判断的一点是，这次地震与汶川地震地震带也是有一定关系的，汶川地区也处于青藏板块的边缘。

今晨7时49分，在青海省玉树藏族自治州玉树县(北纬33.1度，东经96.7度)发生7.1级地震，震源深度约33公里。据悉，震中位于县城附近。

最新报道称，玉树县城强震后土木结构房屋几乎全部倒塌，目前已经死亡400人左右，上万人受伤。

H@T