scholarly journals The Stochastic Finite-Fault Modeling Based on a Dynamic Corner Frequency Simulating of Strong Ground Motion for Earthquake Scenario of North Tabriz Fault

2016 ◽  
Vol 05 (02) ◽  
pp. 114-121
Author(s):  
Hadi Amiranlou ◽  
Mohsen Pourkermani ◽  
Rouzbeh Dabiri ◽  
Manoucher Qoreshi ◽  
Soheila Bouzari
Keyword(s):  
Ground Motion ◽  
Strong Ground Motion ◽  
Fault Modeling ◽  
Corner Frequency ◽  
Earthquake Scenario ◽  
Finite Fault ◽  
North Tabriz Fault ◽  
Stochastic Finite Fault Modeling ◽  
Dynamic Corner Frequency ◽  
Strong Ground

A Flatfile for the KiK-net Database Processed Using an Automated Protocol

2016 ◽  
Vol 32 (2) ◽  
pp. 1281-1302 ◽  
Author(s):  
Haitham M. Dawood ◽  
Adrian Rodriguez-Marek ◽  
Jeff Bayless ◽  
Christine Goulet ◽  
Eric Thompson
Keyword(s):  
Ground Motion ◽  
Strong Ground Motion ◽  
Corner Frequency ◽  
Spectral Acceleration ◽  
Engineering Applications ◽  
Ground Motion Records ◽  
Automated Protocol ◽  
High Pass ◽  
Strong Ground ◽  
Selection Of

The Kiban-Kyoshin network (KiK-net) database is an important resource for ground motion (GM) studies. The processing of the KiK-net records is a necessary first step to enable their use in engineering applications. In this manuscript we present a step-by-step automated protocol used to systematically process about 157,000 KiK-net strong ground motion records. The automated protocol includes the selection of the corner frequency for high-pass filtering. In addition, a comprehensive set of metadata was compiled for each record. As a part of the metadata collection, two algorithms were used to identify dependent and independent earthquakes. Earthquakes are also classified into active crustal or subduction type events; most of the GM records correspond to subduction type earthquakes. A flatfile with all the metadata and the spectral acceleration of the processed records is uploaded to NEEShub ( https://nees.org/resources/7849 , Dawood et al. 2014 ).

A fault model with variable slip duration for the 1989 Loma Prieta, California, earthquake determined from strong-ground-motion data

1996 ◽  
Vol 86 (1A) ◽  
pp. 122-132
Author(s):  
Stephen Horton
Keyword(s):  
Ground Motion ◽  
Strong Ground Motion ◽  
Propagation Rate ◽  
Fault Model ◽  
Fault Surface ◽  
Loma Prieta Earthquake ◽  
Motion Data ◽  
Finite Fault ◽  
Loma Prieta ◽  
Strong Ground

Abstract A finite-fault model with variable slip duration is inferred from strong-ground-motion data for the Loma Prieta earthquake. Unlike previous models, slip duration is found to be consistent with fault width scaling. Slip duration varies between 1 and 6 sec at points along the fault surface with values between 3 and 6 sec, where slip amplitudes obtain or exceed the average slip of 98 cm. Modest high-frequency modifications of the slip function shape greatly enhance the data fit without significantly changing the inferred static offset or rupture characteristics. This model exhibits bilateral rupture with the propagation rate of the main energy release of 3 km/sec or less. The moment is 2.3 × 1026 dyne-cm, and the largest slip amplitudes occur northwest of the hypocenter. The rake varies with position along the fault from dominantly strike slip in the southeast to dominantly reverse slip in the northwest.

Comparison of Loss Estimation for Various Seismic Source Models: The Case of the 1995 Hyogo-ken Nanbu Earthquake

2003 ◽  
Vol 19 (1) ◽  
pp. 67-85
Author(s):  
Ken Hatayama ◽  
Shinsaku Zama
Keyword(s):  
Ground Motion ◽  
Strong Ground Motion ◽  
Seismic Source ◽  
Loss Estimation ◽  
Kobe Earthquake ◽  
Finite Fault ◽  
Seismic Source Models ◽  
Future Earthquake ◽  
Source Models ◽  
Strong Ground

We compare the distribution of damage to housing caused by the 1995 Hyogo-ken Nanbu (Kobe) earthquake with those estimated for several source models proposed for this earthquake. This comparison aims at identifying source models that can provide loss estimates that are most appropriate for planning emergency response activities just after earthquakes and/or for preparing effective countermeasures for mitigation of future earthquake disasters. The results suggest the necessity of finite-fault slip models that can reproduce or predict accurately strong ground motion within a frequency range closely related to damage. The loss estimation just after earthquakes based on source models can be counted on in areas without dense strong-ground-motion observation networks. Even with the dense networks, source models will also be useful for accurate loss estimation in the immediate vicinity of earthquake source faults.

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