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首页> 外文期刊>Bulletin of earthquake engineering >A note on the Mw 6.3 earthquake in Iceland on 29 May 2008 at 15:45 UTC
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A note on the Mw 6.3 earthquake in Iceland on 29 May 2008 at 15:45 UTC

机译:关于2008年5月29日世界标准时间(UTC)冰岛6.3级地震的记录

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This preliminary study aims to investigate a Mw 6.3 earthquake that occurred in South Iceland on Thursday 29 May 2008 at 15:45 UTC. The epicentre was in the Olfus District between the towns of Selfoss and Hveragerdi. This study examines the data recorded and the damage observed immediately after the event. Horizontal accelerations of up to 80%g were recorded in the epicentral region and there is visual evidence that the vertical acceleration exceeded 1 g. The PGA data is compared to a ground motion estimation model developed for the South Iceland earthquakes in June 2000. In general the basic properties of this event are found to be similar to the characteristics of the South Iceland earthquakes in June 2000. The duration of strong-motion is short and the intensity attenuates rapidly with increasing distance. The earthquake action resisted by buildings in the near fault area is inspected through evaluation of elastic as well as inelastic response spectra. The vast majority of structures seemed to withstand the strong-motion fairly competently and without significant visual damage due firstly to the low-rise, predominantly reinforced concrete or timber, style of buildings. Secondly, the short duration of strong-motion contributed to the endurance of structures.
机译:这项初步研究旨在调查2008年5月29日星期四15:45 UTC在冰岛南部发生的6.3级Mw地震。震中位于塞尔福斯(Selfoss)和赫韦拉格迪(Hveragerdi)镇之间的奥尔夫斯(Olfus)区。这项研究检查了事件发生后立即记录的数据和观察到的损坏。在震中区域记录到高达80%g的水平加速度,并且有视觉证据表明垂直加速度超过1 g。将PGA数据与针对2000年6月南冰岛地震开发的地面运动估计模型进行了比较。总的来说,发现该事件的基本特性与2000年6月南冰岛地震的特征相似。运动短,强度随距离增加而迅速衰减。通过评估弹性和非弹性响应谱来检查近断层区域建筑物抵抗的地震作用。首先,由于低矮的,主要是钢筋混凝土或木材的建筑风格,绝大多数结构似乎都能承受得起强力运动,而没有明显的视觉损伤。其次,强烈运动的持续时间短有助于结构的耐力。

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