WORLD'S LARGEST EARTHQUAKES IN 2008

Authors

  • Tamara Jesenko Ministrstvo za okolje in prostor, Agencija RS za okolje, Urad za seizmologijo, Ljubljana
  • Renato Vidrih Ministrstvo za okolje in prostor, Agencija RS za okolje, Urad za seizmologijo, Ljubljana

Abstract

Every year the Earth is shaken by several hundred thousand earthquakes with magnitudes over 2.0 (Dolgoff, 1998), mostly originating at the geotectonic plate boundaries. Two well-defined seismic belts, the circum-Pacific and the Mediterranean-Himalayan belts, are subject to the most frequent shocks. The latter also includes the region of Slovenia. Most earthquakes are weak and do not cause any material damage and do not claim human lives. In addition to these, there are several earthquakes which result in extreme destruction and even death. In 2008 there were 93 earthquakes that either reached a magnitude of 6.5 or more, caused minor or major material damage, or even claimed human lives. Fifty of them are mentioned in this article. The most devastating earthquake of 2008 happened on 12 May in Eastern Sichuan, China, and at least 87,652 people were killed. It was also ranked first in terms of released energy, with a moment magnitude of 7,9. The deepest earthquake happened on 7 July in the Sea of Okhotsk with a hypocentre 633 km below the surface and a moment magnitude of 7.7. In 2008, earthquakes claimed more than 88,076 human lives.

References

ARSO, Urad za seizmologijo in geologijo, 2008. Preliminarni seizmološki bilten, 2008. Agencija Republike Slovenije za okolje, Urad za seizmologijo, Ljubljana.

Dolgoff, A., 1998. Physical Geology. Updated version. Houghton Mifflin co. Boston-New York, str. 638.

NEIC, 2008. Significant Earthquakes of the World. US Department of the Interior. Geological Survey, National Earthquake Information Center.

http://earthquake.usgs.gov/eqcenter/eqinthenews/2008/us2008ryan/

http://geology.com/events/sichuan-china-earthquake/

http://www.eeri.org/site/images/eeri_newsletter/2008_pdf/Wenchuan_China_Recon_Rpt.pdf

Published

19-01-2024

Issue

Section

Natural and other disasters abroad