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Here was this week’s #MindteaserMonday poll. Are you ready for all the answers to be revealed? 😸
Magnitude is the physical size of the earthquake!
Multiply the length of the fault segment that slid by the width by how far one side of the fault slid past the other side … and you’ll get a really big number. 😸
Multiply the length of the fault segment that slid by the width by how far one side of the fault slid past the other side … and you’ll get a really big number. 😸
How big is “really big”?
1989 M6.9 Loma Prieta ruptured 25 miles w/ ~6 ft of slip. That’s 30 billion cubic feet of earthquake.
But the 1906 M7.9 San Francisco earthquake ruptured 300 miles of the San Andreas w/ 2-32 ft of slip. 1 trillion cubic feet of earthquake!
*width~7 mi
1989 M6.9 Loma Prieta ruptured 25 miles w/ ~6 ft of slip. That’s 30 billion cubic feet of earthquake.
But the 1906 M7.9 San Francisco earthquake ruptured 300 miles of the San Andreas w/ 2-32 ft of slip. 1 trillion cubic feet of earthquake!
*width~7 mi
