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 Associated Press explains the difference between shallow and deep earthquakes. Earthquake power. A quakeâs destructive force depends not only on its strength, but also on location, distance from the epicentre and depth. Quakes can strike near the surface or deep within the Earth. Most quakes occur at shallow depths, according to the U.S. Geological Survey. Italyâs quake was very shallow, originating between 4 km and 10 km underground, according to Italyâs geological service and the USGS. The magnitude measurements also varied slightly between magnitude 6 and 6.2. By contrast, the 6.8 quake in Myanmar was deeper at 84 km, which is considered an intermediate depth.