Story maps
故事地圖



(added on 2011/04/07)

Moving plates, shaking ground 板塊移。地殼動

©2011 SpatioEpi.com
Data source: U.S. Geological Survey and ESRI
Map created by CUHK SpatioEpi Group

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Earthquake is a phenomenon in nature which tends to cluster in some parts of the world. Globally, several million earthquakes are estimated to have occurred every year. Many of these hit remote areas or may be too small in magnitude to be appreciated.

The map shows the distribution of earthquakes of magnitude 4.0 or higher on the Richter scale detected between 2008 and March 2011. As indicated by coloured dots, most earthquakes occurred along the boundaries of plates. Referred as "Pacific Ring of Fire", the lands encircling Pacific Ocean are zones of frequent earthquakes and volcanic eruptions. The exact time and epicentre of earthquakes cannot be easily predicted. To protect lives and reduce damages, it is crucial to enhance understanding of earthquake risks, improve engineering design and uphold preparedness.

Data for the map were obtained from U.S. Geological Survey (USGS) and Environmental System Research Institute (ESRI).

地震是一種自然現象,經常集中發生於地球上某些地區。據估計,全球每年有數百萬次地震,當中大部分發生於偏遠地區或因震級太小,以致一般人難以感覺得到。

地圖顯示2008年起至2011年3月期間,全球達黎克特制四級或以上的地震分佈。大部分地震發生於板塊邊緣,其中環繞著太平洋一帶的陸地因地震及火山爆發頻繁,被稱為「太平洋火環帶」。發生地震的確實時間及震央位置難以預測。要減少地震引致的傷亡及破壞,必需加強了解不同地區的地震風險、不斷改進地震相關工程的技術及做好防震準備。

地圖數據源自美國地質調查局及環境系統研究所。