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 Great M9.2 Alaska Earthquake and Tsunami of March 27, 1964 Map of southern Alaska showing the epicenter of the 1964 Great Alaska Earthquake (red star). Click to view a larger image