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.
On July 22, 1937, a magnitude 7.3 earthquake occurred in central Alaska, about 25 miles southeast of Fairbanks, that was felt over most of Alaska's interior, about 300,000 square miles. About ten years later, on October 15, 1947, a magnitude 7.3 shock occurred in the same region.ore than 80 percent of the planet's tremors occur in the circum-Pacific belt, and about six percent of the large, shallow earthquakes are in the Alaska area, where as many as 4,000 earthquake at various depths are detected in a year. Early reports of earthquakes in Alaska are fragmentary.