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.
History of Earthquakes in Alaska The 1964 Good Friday Great Alaskan Earthquake was not an isolated event. Many earthquakes have occured in Alaska in the past, and continue to occur today.