1. This was mainly because the quake had a focal depth of approximately. 2. The focal depth can be calculated from measurements based on seismic wave phenomena. 3. It houses a 300 double reflector with a focal depth of 4.9 m. 4. Previously, all earthquakes were considered to have shallow focal depths . 5. The earthquake had a magnitude of 4.3 at a shallow focal depth of 5 km. 6. The camera allows the photographer to set focal length to control the focal depth of photos. 7. The magnitude of the earthquake has been estimated to be 8.4 focal depth of about 40 km. 8. The last 2005 earthquake is the focal depth and its location with respect to the densely populated areas. 9. Another common requirement is to take a series of images at a fixed position, but at different focal depths . 10. On 13 April 1992, a magnitude 5.4 earthquake occurred near the city of Roermond in a focal depth of about.
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