GnRH stimulates the pituitary gland to produce follicle stimulating hormone (FSH), the hormone responsible for starting follicle (egg) development and causing the level of estrogen, the primary female hormone, to rise.
The Great Alaska Earthquake lasted for nearly five minutes and registered a magnitude of 9.2, still the largest ever recorded in North America and second only to the 9.5-magnitude quake that struck Chile in 1960.
Alaska is the site of the biggest earthquake recorded in North America â a magnitude-9.2 quake on Good Friday 1964 that struck 75 miles east of Anchorage on Prince William Sound. The quake and the ensuing tsunami killed 115 people in Alaska and 16 people in California.