GIS-based rockfall hazard zones modeling along the coastal Gulf of Aqaba Region, Egypt

Table 4 Validity of RHZ map with the selected spot areas

	Risk Area	Area (Km²)	Area(%)	Rockfall frequency (RFF)	Rockfall density (RFF/km²)	Confidence rate (%)
Area 1	Low	*	*	*	*	*
	Moderate	6,81432	59,20	8	1,17	40
	High	4,687744	40,80	12	2,55	60
	Total	11,502064	100	20	3,72	100
Area 2	Low	*	*	*	*	*
	Moderate	4,34128	36	9	2,073	45
	High	7,689184	64	11	1,43	55
	Total	12,030464	100	20	3,503	100
Area 3	Low	0,137664	1,00	*	*	*
	Moderate	6,406128	54,00	8	1,248	40
	High	5,39928	45,00	12	2,225	60
	Total	11,943072	100	20	3,325	100
Area 4	Low	1,237104	9,719	*	*	*
	Moderate	8,260608	64,89	6	0,726	30
	High	4,46784	25,391	14	3,314	70
	Total	12,728448	100	20	1,91	100
Area 5	Low	0,142848	1,00	*	*	*
	Moderate	5,631984	54,00	8	1,42	40
	High	4,683888	45,00	12	2,561	60
	Total	10,45872	100	20	3,83	100