Mandelbrot calculates Hurst indices and 3rd and 4 th moments for 12 varve series, 27 tree ring series from western U.S. (no bristlecones), 9 precipitation series, 1
earthquake frequency series, 11 river series and 3 Paleozoic sediment series.
Now we have a great deal more certainty that the general concern about earthquakes caused by the Cascadia Subduction Zone is scientifically valid, and we also have more precise information about
the earthquake frequency and behavior of the subduction zone.»
The volcano's flanks are bulging from magma trying to push its way out, and
earthquake frequency has been increasing.
Instrumentation of the floor composition is comprised of tank maneuvers, explosions,
earthquake frequencies, helicopters and other heavy equipment.