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.
When this happens, earthquake waves transfer the released energy to the surface of the earth. Seismology is the study of earthquakes, and the waves that they create. The focus (sometimes referred to as the hypocenter) is the point within a geological fault that is rupturing where the earthquake begins. The epicenter is the point on the surface of the earth that is directly above the focus.