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Reply to "I am a earthquake seismologist. AMA. 5th anniversary of Louisa Quake"
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[quote=Anonymous][quote=Anonymous][quote=Anonymous]Can you explain the Richter scale? What is it based on and what is the unit?[/quote] Richter scale, it runs from 1 to 10, with 1 being the lowest magnitude quake and 10 being the highest. The scale is logarithmic, which means for every step up the scale there is actually a 10-fold increase in ground shaking.[/quote] OP here. not quote. It is open ended: it is logarithmic, but there are negative magnitude earthquakes (but they would not be felt). The largest earthquake recorded is 9.5, 1960 in Chile. It is mathematically possible to have a 10+ earthquake, but the fault would have to be an almost 2000 km long fault, and is probably not possible. [/quote]
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