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.
The Alaska Earthquake Center says preliminary reports put the latest aftershock at a magnitude-4.7. A magnitude-7.1 earthquake that struck early Sunday knocked items off shelves and walls in south-central Alaska and jolted the nerves of residents in this earthquake-prone region.