8. Earthquake sources of the Australian plate margin: revised models for the 2018 national tsunami and earthquake hazard assessments

2018 ◽  
Author(s):  
J. D. Griffin ◽  
G. Davies
Keyword(s):  
Earthquake Hazard ◽  
Earthquake Sources ◽  
Plate Margin ◽  
Australian Plate ◽  
Hazard Assessments

scholarly journals Geochemistry of the Late Cretaceous Pandan Formation in Cebu Island, Central Philippines: Sediment contributions from the Australian plate margin during the Mesozoic

2020 ◽  
Vol 6 (2) ◽  
pp. 309-330
Author(s):  
Jerali D. Rodrigo ◽  
Jillian Aira S. Gabo‐Ratio ◽  
Karlo L. Queaño ◽  
Allan Gil S. Fernando ◽  
Leopoldo P. Silva ◽  
...  
Keyword(s):  
Late Cretaceous ◽  
Plate Margin ◽  
Australian Plate

Accretion of the southern Banda arc to the Australian plate margin determined by Global Positioning System measurements

Tectonics ◽  
1996 ◽  
Vol 15 (2) ◽  
pp. 288-295 ◽  
Author(s):  
Joachim F. Genrich ◽  
Yehuda Bock ◽  
Robert McCaffrey ◽  
Eric Calais ◽  
Colleen W. Stevens ◽  
...  
Keyword(s):  
Global Positioning System ◽  
Positioning System ◽  
Plate Margin ◽  
Australian Plate ◽  
Banda Arc ◽  
Global Positioning

scholarly journals Remotely triggered subsidence acceleration in Mexico City induced by the September 2017 <i>M</i><sub>w</sub> 7.1 Puebla and the <i>M</i><sub>w</sub> 8.2 Tehuantepec September 2017 earthquakes

2020 ◽  
Vol 382 ◽  
pp. 683-687
Author(s):  
Dario Solano-Rojas ◽  
Enrique Cabral-Cano ◽  
Enrique Fernández-Torres ◽  
Emre Havazli ◽  
Shimon Wdowinski ◽  
...  
Keyword(s):  
Mexico City ◽  
Metropolitan Area ◽  
Land Subsidence ◽  
Earthquake Hazard ◽  
Earthquake Triggering ◽  
Future Scenario ◽  
Flooding Hazard ◽  
Hazard Assessments ◽  
Potential Impact ◽  
Large Earthquakes

Abstract. Mexico City, a large megacity with over 21 million inhabitants, is exposed to several hazards, including land subsidence, earthquakes, and flooding. Hazard assessments for each hazard type is typically treated separately and usually do not include considerations for any relations among the hazards. Our data makes it plausible for an earthquake triggering case that temporarily accelerated the subsidence rate in the metropolitan area as a result of the Mw 8.2 Tehuantepec and the Mw 7.1 Puebla, September 2017 earthquakes that affected Mexico City. Furthermore, the triggering effect induced rapid slip along previously developed shallow faults associated with subsidence. These results indicate that any future scenario of land subsidence should consider a potential triggering effect by large earthquakes. Similarly, earthquake hazard assessments should also consider potential impact on shallow faulting and fracturing associated with land subsidence.

scholarly journals Improving earthquake hazard assessments in Italy: An alternative to “Texas sharpshooting”

Eos ◽  
2012 ◽  
Vol 93 (51) ◽  
pp. 538-538 ◽  
Author(s):  
Antonella Peresan ◽  
Giuliano F. Panza
Keyword(s):  
Earthquake Hazard ◽  
Hazard Assessments

scholarly journals ANALISIS ZONA BAHAYA GEMPABUMI BERDASARKAN METODE DETERMINISTIK DAN PENDEKATAN GEOMORFOLOGI KOTA PADANG SUMATERA BARAT

2020 ◽  
Vol 5 (2) ◽  
pp. 15-29
Author(s):  
Azis Riyanti ◽  
Syamsurijal Rasimeng
Keyword(s):  
Hazard Analysis ◽  
Shear Waves ◽  
Earthquake Hazard ◽  
Earthquake Source ◽  
Shallow Earthquake ◽  
Subduction Earthquake ◽  
Earthquake Sources ◽  
Deterministic Methods ◽  
Earthquake Hazard Analysis ◽  
Fault Source

Research on earthquake hazard analysis based on deterministic methods and the geomorphology approach of Padang City has been carried out to determine the maximum soil acceleration (PGA) and amplification of the source of the Suliti faults and Earthquake Subduction and determine soil classes based on shear waves (Vs30). The PGA value, several attenuation equations are used to find the magnitude of the shock produced when a shallow earthquake occurs. For the source of fault earthquakes, the attenuation equations used are the equivalent of Boore-Atkinson, Campbell-Bozorgnia, and Chiou-Young. While the attenuation equations used to obtain PGA values from subduction earthquake sources are Atkinson-Boore, Youngs, and Zhao. PGA value of earthquake source Subduction in bedrock 0.0374 g. While the PGA value on the surface is 0.0769 g. Whereas the PGA value in the fault source (Hard Fault) in bedrock ranged from 0.0376 g, while the PGA value on the surface ranged from 0.0573 g. Areas that have a severe impact if an earthquake originates from a fault are Koto Tengah District, West Padang Subdistrict, and North Padang Subdistrict with the highest amplification value of 1.7690 ( 9 times) which indicates that the magnification of the area is high. Whereas in the case of an earthquake with an earthquake source subduction area which is very vulnerable is West Padang District, Koto Tengah District, Padang Utara District with an amplification value of 2.0607 ( 9 times).

Fault evolution, scaling relationships and hazard

2021 ◽  
Author(s):  
Joanna Faure Walker ◽  
Francesco Iezzi ◽  
Gerald Roberts
Keyword(s):  
Seismic Hazard ◽  
Slip Rate ◽  
Seismic Hazard Assessment ◽  
Normal Fault ◽  
Earthquake Hazard ◽  
Fault Geometry ◽  
Slip Rates ◽  
Scaling Relationships ◽  
Hazard Assessments ◽  
Fault Evolution

&lt;p&gt;Changes in fault geometry, throw-rates and slip-rates along the length of a fault are crucial for understanding fault evolution and interaction and need to be incorporated in interpretation of fault scaling relationships and earthquake hazard assessments. Normal fault examples from Iceland and Italy provide examples of soft linkage, breach faults, and bends in faults that can be used to investigate fault growth at different stages of fault linkage. We find that at all stages of fault linkage studied, bends in strike along a fault affect throw-rate profiles along the fault. Crucially, for fault-based seismic hazard assessment, we need to consider how we interpret throw-rate and slip-rate profiles along a fault because how we interpret slip-rate profiles will impact moment release calculations and hence recurrence intervals. We therefore need detailed data regarding fault geometry and slip-rates to inform fault-based seismic hazard assessments, uncertainties and where further study is needed.&lt;/p&gt;

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