GIS-based soil liquefaction susceptibility map of Mumbai city for earthquake events

2010 ◽  
Vol 70 (3) ◽  
pp. 216-225 ◽  
Author(s):  
Sumedh Yamaji Mhaske ◽  
Deepankar Choudhury
Keyword(s):  
Soil Liquefaction ◽  
Susceptibility Map ◽  
Liquefaction Susceptibility ◽  
Mumbai City

scholarly journals Liquefaction severity map for Aksaray city center (Central Anatolia, Turkey)

2008 ◽  
Vol 8 (4) ◽  
pp. 641-649 ◽  
Author(s):  
A. Yalcin ◽  
C. Gokceoglu ◽  
H. Sönmez
Keyword(s):  
Fault Zone ◽  
Soil Layer ◽  
Soil Liquefaction ◽  
Central Anatolia ◽  
Susceptibility Map ◽  
City Center ◽  
Fine Content ◽  
Alluvial Deposits ◽  
Western Turkey ◽  
Liquefaction Susceptibility

Abstract. Turkey having a long history of large earthquakes have been subjected to progressive adjacent earthquakes. Starting in 1939, the North Anatolian Fault Zone (NAFZ) produced a sequence of major earthquakes, of which the Mw 7.4 earthquake that struck western Turkey on 17 August 1999. Following the Erzincan earthquake in 1992, the soil liquefaction has been crucial important in the agenda of Turkey. Soil liquefaction was also observed widely during the Marmara and the Düzce Earthquake in 1999 (Sönmez, 2003). Aksaray city center locates in the central part of Turkey and the Tuzgolu Fault Zone passes through near the city center. The fault zone has been generated to moderate magnitude earthquakes. The geology of the Aksaray province basin contains Quaternary alluvial deposits formed by gravel, sand, silt, and clay layers in different thickness. The Tuzgolu Fault Zone (TFZ) came into being after the sedimetation of alluvial deposits. Thus, the fault is younger from lithological units and it is active. In addition, the ground water level is very shallow, within approximately 3 m from the surface. In this study, the liquefaction potential of the Aksaray province is investigated by recent procedure suggested by Sonmez and Gokceoglu (2005). For this purpose, the liquefaction susceptibility map of the Aksaray city center for liquefaction is presented. In the analysis, the input parameters such as the depth of the upper and lower boundaries of soil layer, SPT-N values, fine content, clay content and the liquid limit were used for all layers within 20 m from the surface. As a result, the category of very high susceptibility liquefaction class was not observed for the earthquake scenario of Ms=5.2, 4.9% of the study area has high liquefaction susceptibility. The percentage of the moderately, low, and very low liquefied areas are 28.2%, 30.2%, and 36.3%, respectively. The rank of non-liquefied susceptibility area is less than 1%.

Liquefaction susceptibility maps for the Aqaba–Elat region with projections of future hazards with sea-level rise

2020 ◽  
pp. qjegh2020-039 ◽  
Author(s):  
Abdel-Rahman A. Abueladas ◽  
Tina M. Niemi ◽  
Abdallah Al-Zoubi ◽  
Gideon Tibor ◽  
Mor Kanari ◽  
...  
Keyword(s):  
Sea Level ◽  
Water Table ◽  
Active Faults ◽  
Gulf Of Aqaba ◽  
Susceptibility Map ◽  
Northern Coast ◽  
Borehole Data ◽  
Ground Acceleration ◽  
Liquefaction Susceptibility ◽  
Susceptibility Maps

The cities of Aqaba, Jordan and Elat, Israel are vulnerable to seismic damage because they are built over the active faults of the Dead Sea Transform that are the source of historically destructive earthquakes. A liquefaction susceptibility map was generated for the Aqaba–Elat region. Borehole data from 149 locations and the water table depth were used to calculate effective overburden stress in the Seed–Idriss simplified method. The liquefaction analysis was based on applying a cyclic loading scenario with horizontal peak ground acceleration of 0.3 g in a major earthquake. The liquefaction map, compiled using a GIS platform, shows high and moderate liquefaction susceptibility zones along the northern coast of the Gulf of Aqaba that extend 800 m inland from the shoreline. In Aqaba, several hotels, luxury apartment complexes, archaeological sites, ports and commercial districts are located within high and moderate liquefaction zones. In Elat, the seaport and the coastal hotel district are located within a high susceptibility zone. Most residential areas, schools and hospitals in both cities are located within zones not susceptible to liquefaction based on the methods of this study. The total area with the potential to be liquefied along the Gulf of Aqaba is c. 10 km2. Given predictions for global sea-level, we ran three liquefaction models utilizing projected water table rises of 0.5, 1 and 2 m. These models yielded an increase in the area of high liquefaction ranging from 26 to 49%. Given the high potential of future earthquakes, our liquefaction susceptibility maps should help inform city officials for hazard mitigation planning.

scholarly journals LIQUEFACTION SUSCEPTIBILITY MAP OF GREECE

2017 ◽  
Vol 43 (3) ◽  
pp. 1383 ◽  
Author(s):  
G. Papathanassiou ◽  
S. Valkaniotis ◽  
Al. Chaztipetros ◽  
S. Pavlides
Keyword(s):  
Decision Makers ◽  
Susceptibility Map ◽  
Published Data ◽  
Hazard Zonation ◽  
Liquefaction Susceptibility ◽  
Gulf Of Corinth ◽  
Depositional Process ◽  
Geological Units ◽  
Very High ◽  
Of Greece

The basic goal of this study is the delineation of liquefaction susceptibility zones by correlating geological, geomorphological, seismological and past liquefaction occurrences information. A liquefaction susceptibility map should be used as a screening guide by decision makers for avoiding in advance prone to liquefaction areas. In order to compile this map, we took into consideration published data regarding the surficial distribution of geological units (IGME), the seismic hazard zonation in Greece as it is defined by the Earthquake Palling and Protection Organization and the distribution of historical liquefaction occurrences provided by the relatively database DALO v1.0 http://users.auth.gr/gpapatha/dalo.htm ). Initially, Quaternary age deposits were classified into categories of susceptibility based on their age and depositional process, having considered the designed value of acceleration. Afterwards, areas where past liquefaction occurrences were reported have been upgraded one level. The result obtained by this study is that as very high susceptibility zones are considered the coastal areas at the Ionian Islands and at the Gulf of Corinth

scholarly journals Exposure and loss assessment of soil liquefaction in coastal area of Kulon Progo, Indonesia

2020 ◽  
Vol 200 ◽  
pp. 02008
Author(s):  
Ghiffari Rizki ◽  
Rachmawati Rini ◽  
Rijanta Raden
Keyword(s):  
Residential Buildings ◽  
Vertical Displacement ◽  
Lateral Spreading ◽  
Soil Liquefaction ◽  
Transport Infrastructure ◽  
Susceptibility Map ◽  
Loss Assessment ◽  
High Exposure ◽  
Liquefaction Hazard ◽  
Study Results

Soil Liquefaction is a phenomenon of loss of strength of the granural soil layers due to increased pore water stress caused by earthquake shocks. Soil liquefaction can cause material and life damage if occurs in the developed area. Kulon Progo Regency based on the Atlas of Liquefaction Susceptibility Zones in 2019, has high susceptibility zones, which has the potential for flow liquefaction, lateral spreading, vertical displacement, and sand boil. This study aims to assess the exposure and loss index in liquefaction hazard zone based on the characteristics of land use and social demographic. The exposure index is obtained from overlaying between susceptibility map and liquefaction exposure variables, when the loss assessment is done by simulating the losses in several earthquake moment magnitude scenarios. Study results show that high exposure surrounding the residential zone in the south of the Wates Urban Area and the construction location of the Yogyakarta International Airport. There are settlement areas potentially affected by lateral spreading in Glagah, Karangwuni, Banaran, and Karangsewu Villages. While the results of the loss assessment show that transport infrastructure and residential buildings are the most affected objects when liquefaction phenomena occur due to the earthquake. Managing the expansion of settlement area through zoning regulation and technical engineering approach is needed to reduce losses due to future liquefaction phenomenon.

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