High School Earth Science/Nature of Earthquakes - Earthquake Zones. 1  Some locations are prone to earthquakes and some are not. Nearly 95% of all earthquakes take place along one of the three types of plate boundaries. 2  The region of the planet with the most earthquakes is the area around the Pacific Ocean.
The show originally ran for around eight minutes per edition to guard against the possibility of children getting bored while watching. 6. John Craven was the showâs first and longest-serving presenter, hosting Newsround for 17 years, from 1972 to 1989. 7. Craven presented more than 3,000 bulletins during his time on the show.
In 1989, Couric joined Today as national political correspondent, becoming a substitute co-host in February 1991 when Norville had to leave. Norville did not return and Couric became permanent co-anchor on April 5, 1991.