Distant sources - A tsunami caused by a very large earthquake elsewhere on the Pacific Rim could reach the California coast many (4 to 15) hours after the earthquake. The Alaska-Aleutians Subduction Zone is an example of a distant source that has caused destructive tsunamis in California.
Norplant and Implanon. Norplant is the name given to a series of rods or capsules that a doctor surgically inserts into a womanâs upper arm. The inserts release progestin into a womanâs bloodstream in order to prevent the ovaries from releasing eggs. However, this mechanism only works some of the time.[1].
It contains the hormone progestin (levonorgestrel). Plan B is most effective if you take it as soon as possible after unprotected intercourse but can be used up to 120 hours (5 days) to prevent pregnancy. Plan B is not the same as the abortion pill (RU486) and does not work if you are already pregnant.