کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4694880 | 1636936 | 2007 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Rupture length and velocity for earthquakes in the Mid-Atlantic Ridge from directivity effect in body and surface waves
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The dimensions and rupture velocities of four earthquakes, two in the Mid-Atlantic Ridge and two in Iceland with strike–slip mechanisms and magnitudes (Mw) between 6.2 and 6.8 were studied using the directivity effects of Rayleigh and body waves. For Rayleigh waves we used the directivity function for different pairs of stations and for body waves the waveforms of P and SH waves corresponding to a simple extended line source. We have found that three have very shallow depths about 3 km and one 8 km, fault lengths between 12 km and 21 km, and a low rupture velocity of about 1.5 km/s to 2.0 km/s which supports the idea of the presence of slow earthquakes in transform faults.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tectonophysics - Volume 433, Issues 1–4, 2 April 2007, Pages 65–79
Journal: Tectonophysics - Volume 433, Issues 1–4, 2 April 2007, Pages 65–79
نویسندگان
C. Pro, E. Buforn, A. Udías,