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Richter-multiplier, Mercalli-Cancani-Sieberg scale (described with text)
The animals felt the Algerian earthquake
Ancient earthquake explanation
Hard times - The magnitude of earthquakes: Peace of Mind in Earthquake Country (Peter Yanev)
Hungarian Earthquake Research Institute
Defense, development of scales
The strongest earthquakes since 1900 (table)
Slow quakes (György Válas)
National Science Foundation Office of Legislative and Public Affairs Press Release, March 28, 2002
European Makroseismic Scale 1998 (EMS-98)
European Makroseismic Scale (EMS)
Interactive Earthquake Catalogue (IEC)
Full list of Hungarian earthquakes
Basic knowledge about earthquakes
Historical tremors of Hungary
Focal-mechanism of earthquakes
Picture of a Californian earthquake
S. Iai, Japan - Ministry of Transport
RTL Klub Online
Help to translate the technical terms
Benioff zone
Our planet, The Earth (Book by Park Press)