Jun

23

 Here is a topic of discussion to keep and eye on. "Locked and loaded" is a popular expression currently bandied about. Noise reduction statistics used to tease out vertical component may be of interest too.

1. "GPS Readings Showed Large-Scale Vertical Motion Along San Andreas Fault"

Vertical "lobes" along San Andreas Fault give likelihood of large earthquakes happening within the nex… Pulse Headlines noted that the US Geological Survey predicted a possible maximum earthquake magnitude of 8.0 along the San Andreas Fault, with a seven percent probability that the event could occur within the next 30 years.

In the same 30-year period, there is a 75 percent chance of a 7.0 magnitude earthquake happening. The difference between the two magnitude sizes may seem small, but an earthquake with an 8.0 magnitude is said to have 1,000 times more energy than the 7.0 magnitude quake. To help them understand better the possible damages that these events could produce, researchers modeled a 7.8 magnitude quake with a 2 to 7-meter slippage to represent the catastrophic consequences that it could have on California. They were able to determine that the most damage will happen to constructions straddling the fault. The area that will be most affected will include 996 roads, 90 fiber optic cables, 39 gas pipes, and 141 power lines across the zone.


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