TY - JOUR
T1 - The March 11, 2002 Masafi, United Arab Emirates earthquake
T2 - Insights into the seismotectonics of the northern Oman Mountains
AU - Rodgers, Arthur
AU - Fowler, Abdel Rahman
AU - Al-Amri, Abdullah M.S.
AU - Al-Enezi, Abdullah
N1 - Funding Information:
Waveform data for station ABKT were obtained by the Incorporated Research Institutions for Seismology Data Management System (IRIS-DMS), funded by the US National Science Foundation. Moustafa Hemeda provided assistance with KACST data. A review by Ali Al-Lazki improved the original manuscript. We are grateful for editorial assistance by Kevin Furlong. This work was performed under the auspices of the U.S. Department of Energy by the University of California Lawrence Livermore National Laboratory under contract W-7405-ENG-48. This is an LLNL contribution UCRL-JRNL-211714.
PY - 2006/3/27
Y1 - 2006/3/27
N2 - A moderate (M ∼5) earthquake struck the northeastern United Arab Emirates (UAE) and northern Oman on March 11, 2002. The event was felt over a wide area of the northern Emirates and was accompanied by smaller (felt) events before and after the March 11 main shock. The event was large enough to be detected and located by global networks at teleseismic distances. We estimated focal mechanism and depth from broadband complete regional waveform modeling. We report a normal mechanism with a slight right-lateral strike-slip component consistent with the large-scale tectonics. The normal component suggests relaxation of obducted crust of the Semail ophiolite (specifically, the Khor Fakkan Block) while the right-lateral strike-slip component of the mechanism is consistent with shear across the Oman Line. Felt earthquakes are rare in the region, however no regional seismic network exists in the UAE to determine local seismicity. This event offers a unique opportunity to study the active tectonics of the region as well as inform future studies of seismic hazard in the UAE and northern Oman.
AB - A moderate (M ∼5) earthquake struck the northeastern United Arab Emirates (UAE) and northern Oman on March 11, 2002. The event was felt over a wide area of the northern Emirates and was accompanied by smaller (felt) events before and after the March 11 main shock. The event was large enough to be detected and located by global networks at teleseismic distances. We estimated focal mechanism and depth from broadband complete regional waveform modeling. We report a normal mechanism with a slight right-lateral strike-slip component consistent with the large-scale tectonics. The normal component suggests relaxation of obducted crust of the Semail ophiolite (specifically, the Khor Fakkan Block) while the right-lateral strike-slip component of the mechanism is consistent with shear across the Oman Line. Felt earthquakes are rare in the region, however no regional seismic network exists in the UAE to determine local seismicity. This event offers a unique opportunity to study the active tectonics of the region as well as inform future studies of seismic hazard in the UAE and northern Oman.
KW - Arabian-Eurasian collision
KW - Oman Mountains
KW - Semail ophiolite
KW - United Arab Emirates
UR - http://www.scopus.com/inward/record.url?scp=33644986655&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33644986655&partnerID=8YFLogxK
U2 - 10.1016/j.tecto.2005.11.008
DO - 10.1016/j.tecto.2005.11.008
M3 - Article
AN - SCOPUS:33644986655
SN - 0040-1951
VL - 415
SP - 57
EP - 64
JO - Tectonophysics
JF - Tectonophysics
IS - 1-4
ER -