Improved lithospheric attenuation structure of the Arabian Peninsula through the use of national network data

Journal Article · Tue May 18 00:00:00 UTC 2021 · Arabian Journal of Geosciences

DOI: https://doi.org/10.1007/s12517-021-07294-x · OSTI ID:1814678

Pasyanos, Michael E.  ^[1]; Tarabulsi, Yahya M. ^[2]; Al-Hadidy, Salah Y. ^[2]; Raddadi, Wael W. ^[2]; Mousa, Abdullah D. ^[2]; El-Hussain, Issa  ^[3]; Al-Jeri, Farah  ^[4]; Al-Shukri, Haydar  ^[5]; Gök, Rengin  ^[1]

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1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
2. Saudi Geological Survey, Jeddah (Saudi Arabia)
3. Sultan Qaboos Univ., Muscat (Oman)
4. Kuwait Inst. of Scientific Research (Kuwait)
5. Univ. of Arkansas, Little Rock, AR (United States)

We characterize the attenuation structure of the Arabian Peninsula through the measurement of regional phase amplitudes. High-resolution is achieved by combining stations from global networks with national network data through the cooperative effort of several countries in the region, including Saudi Arabia, Oman, Iraq, and Kuwait. The result is an improved attenuation model of the crust and upper mantle for a broad frequency band that extends from 0.5 to 10 Hz. The observed attenuation is in accordance with various elements of earth structure, including plate boundary type, style of tectonism, thermo-tectonic age, and temperature. Emerging features from the model include details in the structure along the Red Sea, and improved imaging of the southern Arabian Peninsula extending north from the Gulf of Aden. Finally, the resulting attenuation model can be employed for better magnitude estimates, in isolating tectonic and structural features, and in characterizing strong ground motion in the Arabian Peninsula.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• Grant/Contract Number: AC52-07NA27344
• OSTI ID: 1814678
• Report Number(s): LLNL-JRNL--815958; 1025308
• Journal Information: Arabian Journal of Geosciences, Journal Name: Arabian Journal of Geosciences Journal Issue: 10 Vol. 14; ISSN 1866-7511
• Publisher: Springer NatureCopyright Statement
• Country of Publication: United States
• Language: English