A 3000-year proxy record from a coastal lake in Cape Cod suggests that hurricane activity increased significantly during the past 500 1000 years, just as the Gulf coast was amid a quiescent period of the last millennium.
12.
The earthquake occurred along the Dead Sea Transform ( DST ) fault system, an active tectonic plate boundary with seismicity that is characterized by long-running quiescent periods with occasional large and damaging earthquakes, along with intermittent earthquake swarms.
13.
"' Bursting "', or "'burst firing "', is an extremely diverse general phenomenon of the activation patterns of neurons in the central nervous system and spinal cord where periods of rapid action potential spiking are followed by G0 phase quiescent periods.
14.
For example, bursting due to a changing membrane potential is common in various neurons, including but not limited to cell bursts continuously with no periodic quiescent periods, but beating is often considered to be an extreme case and is rarely of primary interest.
15.
Many seismologists believe that the 1906 San Francisco earthquake, which occurred on the San Andreas fault, reduced the stress on many faults in the Bay Area including the Hayward fault, creating an " earthquake shadow " : a quiescent period following a major earthquake.
16.
What that means, the scientists said, is that the current series of earthquakes is more likely to strike heavily urbanized areas than at any time in the past, and that most of the buildings being shaken were built in a quiescent period when the threat was deemed to be less.