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113122

LG PHASE EFFICIENCY PROPAGATION AND THE INTENSITY OF GROUND SHAKING IN THE NORTH WESTERN PART OF SYRIA

Article

Last updated: 04 Jan 2025

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Subjects

-

Tags

Civil Engineering: structural, Geotechnical, reinforced concrete and s…nd sanitary engineering, Hydraulic, Railway, construction Management.

Abstract

The high level of seismicity at the regional seismic sources around Syria and the good distribution of the 57 seismic network stations in Syria and surrounding areas (Turkey, Cyprus, Jordan) allowed a detailed characterization of regional Lg phase propagation and definition of the parts where this phase is clearly seen, well developed and zones of Lg blockage by determining the values of Lg Q0 (Q at 1 Hz) over these paths using the standard two-station method. Since the Lg phase for distances larger than 150 km carries substantial energy for large events [1], and the differences in efficiency of propagation influences the intensity of ground shaking [2]. Thus, in this study, were correlated the good paths of lg phase with the intensity contours of the 1822, 1872 historical large determined, earthquake located at the north western part of Syria [3] and the pick ground acceleration recorded at Syrian strong motion stations of the recent event (22 June 1997) with magnitude 4.9 located in the same region of historical events [4],[5]. It is found that the trend of north east direction extended for the historical intensity contours and the high pick ground acceleration observed for the recent event (22 June 1997) are taking the same trend as Lg efficient propagation in that Area.

DOI

10.21608/jesaun.2012.113122

Keywords

LgQ0, North-west Syria, lg phase, PGA

Authors

First Name

Randa

Last Name

Mohamad

MiddleName

-

Affiliation

Syrian National Earthquake Centre, Damascus, SYRIA, phD student.

Email

randam@scs-net.org

City

-

Orcid

-

First Name

Mohammad

Last Name

Al-Samara

MiddleName

-

Affiliation

Higher Institute of Earthquake studies and research, University of Damascus, SYRIA.

Email

-

City

-

Orcid

-

First Name

Eric

Last Name

Sandvol

MiddleName

-

Affiliation

Department of Geological Sciences, University of Missouri Colombia, Missouri, USA

Email

-

City

-

Orcid

-

Volume

40

Article Issue

No 2

Related Issue

16840

Issue Date

2012-03-01

Receive Date

2012-01-12

Publish Date

2012-03-01

Page Start

367

Page End

382

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 40_Issue No 2_Pages 367-382.pdf

PDF . 1.3MB

Link

https://jesaun.journals.ekb.eg/article_113122.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=113122

Order

5

Type

Research Paper

Type Code

1,438

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

https://jesaun.journals.ekb.eg/

MainTitle

LG PHASE EFFICIENCY PROPAGATION AND THE INTENSITY OF GROUND SHAKING IN THE NORTH WESTERN PART OF SYRIA

Details

Type

Article

Created At

23 Jan 2023