Seismic Hazard Assessment of United Arab Emirates and Its Surroundings

Probabilistic seismic hazard analysis for rock sites in the cities of Abu Dhabi, Dubai and Ra's Al Khaymah, United Arab Emirates

“…In contrast with the relatively high hazard estimates presented by Abdalla and Al-Homoud (2004) and by Sigbjo¨rnsson and Elnashai (2006), two other recent studies have indicated much lower levels of seismic hazard in the UAE. However, whereas the two previous studies have appeared in a peerreviewed journal, these other studies have been published in conference proceedings and as an internal report respectively, so their impact has been reduced.…”

“…The hazard levels indicated by the Sigbjo¨rnsson and Elnashai (2006) study are actually higher than those found by Abdalla and Al-Homoud (2004), which themselves are considered to be conservative.…”

“…In other words, the hazard estimates in the UAE were simply inferred from the hazard in surrounding regions without any consideration of local seismicity. Abdalla and Al-Homoud (2004) presented the first PSHA specifically for the United Arab Emirates. Their study begins by dismissing the GSHAP hazard estimates for the UAE Á citing, ad verbatim but without reference, a report prepared by the second author of this paper for an engineering consultancy making a case for reduced seismic design loads to the Dubai Municipality Á and they go on to produce a new hazard map.…”

Site specific probabilistic seismic hazard analysis at Dubai Creek on the west coast of UAE

“…It is observed that the PGA for the 475-year return period spectrum is 0.17 g, and 0.33 g for the 2,475-year return period spectrum, which is consistent with previous seismic hazard studies for this region. Abdalla and Al-Homoud (2004) developed seismic hazard maps 10 2 10 1 10 0 10 -1 10 -2 10 -3 10 -4 10 -5 10 -6 10 -7 10 -8 Annual frequency of exceedance 10 -4 10 -3 10 -2 10 -1 10 0 10 1 Peak ground acceleration (g) for the United Arab Emirates for PGA with a 475-year return period on bedrock. They reported a PGA between 0.10 g and 0.20 g with an average of 0.15 g for the zone that covers Dubai, Sharjah, and Ajman.…”

Preliminary probabilistic seismic hazard assessment for the Kingdom of Saudi Arabia based on combined areal source model: Monte Carlo approach and sensitivity analyses

“…Seismic hazard for the territory of United Arab Emirates (UAE) was analyzed by Abdalla and Al-Homoud [1,2] in terms of PGA for rock sites. Khan et al [46] considered also spectral acceleration at different natural periods and used several ground-motion prediction equations in a logic tree scheme showing results of deaggregation for major cities.…”