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HULHULE-MALE’ BRIDGE PROJECT

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EIA for the proposed Hulhule-Male’ Bridge Project<br />

coral rocks and massive coral rocks. In near-field region, the faults in before late Pleistocene are<br />

well developed and they are basically distributed around the atoll.<br />

4.8.1.3 Seismic hazard analysis<br />

According to the analysis on seismogeology, geophysical field characteristics and seismic<br />

activity at the construction site, the project site is situated at a general field (moderate stiff soil<br />

sites), which designs the ground motion peak acceleration of 43 gal. According to the<br />

acceleration division standard in Chinese seismic ground motion parameters map (GB 18306-<br />

2011), the site region belongs to VI region that is of stable geological structure, which is suitable<br />

for bridge construction.<br />

4.8.2 Tsunamis<br />

The Maldives is not generally affected by tsunamis but there have been a few events in the<br />

Indian Ocean region over the last 100 years. Among these, two events stand out: the first caused<br />

by the eruption of Krakatau and the second was the infamous December 2004 Indian Ocean<br />

Tsunami, which caused wide spread damage along the Indian Ocean (UNDP, 2006). The Indian<br />

Ocean, the tsunami caused by an earthquake in Sumatra of Indonesia, with a wave height of<br />

1.2~4.2 m on December 26 th , 2004, caused severe impact and destruction to Maldives, resulting<br />

in serious damage in 39 islands. Nearly one-third of the Maldives people were seriously affected.<br />

About 29,580 residents were displaced and 12,000 were left homeless. The capital, Male’, is one<br />

of few islands had not been completely submerged by the seismic tsunami. Figure 5.1-20 shows<br />

the affected area and wave height in Male’ Island tsunami, which shows that the seismic tsunami<br />

has affected the project site with waves up to 1.7 meters.<br />

Figure 4.52: The affected area and wave height in Male’ during 2004 tsunami<br />

Prepared by: CDE Consulting & China Shipping Environment Technology<br />

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