The effects of a 6 week dynamic core stability plank exercise. program compared to a traditional supine core stability. strengthening program on diastasis recti abdominis closure, pain, oswestry disability index (ODI) and pelvic floor disability. index scores (PFDI)
Unsourced material may be challenged and removed. (April 2016) (Learn how and when to remove this template message) In seismology, the depth of focus or focal depth refers to the depth at which an earthquake occurs. Earthquakes occurring at a depth of less than 70 km (43 mi) are classified as shallow-focus earthquakes, while those with a focal depth between 70 km (43 mi) and 300 km (190 mi) are commonly termed mid-focus or intermediate-depth earthquakes.
The top map is for all depths and the bottom map is for events with focal depths greater than 100 km for all magnitude events. (from Stein and Wysession, 2003). Although most seismicity is shallow, less than 100 km in depth, in some regions of the Earth, seismicity can reach depths of greater than 600 km. These regions are called subduction zones and are thought to represent places where oceanic crust descends or sinks into the mantle.