Probabilistic Seismic Hazard Analysis for Yemen

Table 2

Characteristics of seismic source zones.

Source ID	Seismic source name	𝑎-value	𝑏-value	𝑀max	Elementary fault segments	Stochastic events
1	Central Rub Al-Khali Arabian Shield	1.959	0.763	6.6	256	2,048
2	North Rub Al-Khali Arabian Shield	1.563	0.763	6.6	175	1,400
3	East Rub al Khali Arabian Shield	1.646	0.763	6.6	216	1,728
4	NW Yemen Arabian Shield	1.889	0.763	7.1	45	495
5	Yemen West Arabian Shield	2.832	0.763	7.1	126	1,386
6	Gulf of Aden	5.199	0.988	7.4	249	2,988
7	Red Sea-Al Darb	4.056	0.869	7.4	144	1,728
8	Red Sea	4.152	0.878	7.1	105	1,155
9	East African Rift	3.049	0.742	7.1	147	1,617
10	East Sheba Ridge	5.216	1.084	7.4	54	648
11	Sheba Ridge	4.886	1.084	7.7	32	416
12	Sheba Ridge south	4.738	1.084	7.1	34	374
	Total				1,583	15,983