Earth quarks

Tangshan, China - 1976 650,000 killed Bam, Iran Earthquake 6.6 Mw 27 000 Dead 27,000 2003 Elastic Strain hypocenter unknowns : 1) time of origin, 2) location, 3)depth, 4) fault type Internal Structure of the Earth [...]... from epicenter •Logarithmic scale •Maximum magnitude g ~9.0 = shear h modulus d l M o  DA D = average g fault dislocation caused by the earthquake A = fault f lt area Annual total Mo released – 3x1028 N m M w  log M o -gives g a magnitude g directly y tied to earthquake q source processes that does not saturate Largest Mw recorded = 9.5 (1960 Chili EQ) ~10,000 EQs/year ... g fault dislocation caused by the earthquake A = fault f lt area Annual total Mo released – 3x1028 N m M w  log M o -gives g a magnitude g directly y tied to earthquake q source processes that...Tangshan, China - 1976 650,000 killed Bam, Iran Earthquake 6.6 Mw 27 000 Dead 27,000 2003 Elastic Strain hypocenter unknowns : 1) time of origin,