You Do Need power plug adapter while traveling from American Samoa to Israel.

Here is Why You Need An Adapter

The outlet and plug type used in Israel are C and H and in American Samoa are A, B, F and I. This is how they look like.

American Samoa

In American Samoa, outlets of type A, B, F and I are in use.

Type A

Type B

Type F

Type I

Israel

In Israel, outlets of type C and H are in use.

Type C

Type H