Results 61 to 70 of about 811 (208)

Preliminary result of dominant frequency and seismic amplification in Penajam Paser Utara and its surrounding regions using the HVSR method

open access: yes, 2023
East Kalimantan has been designated as the new capital city of Indonesia, precisely in Penajam Paser Utara and Kutai Kartanegara Regency. According to the historical records of seismic activity, there were several destructive earthquakes in East ...

core   +1 more source

Regional mapping of sediment thickness using microtremor HVSR spatial variability

open access: yesDiscover Geoscience
The microtremor Horizontal-to-Vertical Spectral Ratio (HVSR) method is widely adopted for estimating site fundamental frequency ( $$\:{f}_{0}$$ ) and sediment thickness due to its simplicity and cost-effectiveness. However, current applications typically
YiFan Yang, LiJing Shi, Junjie Huang
doaj   +1 more source

Shear wave velocity model using HVSR inversion beneath Bandar Lampung City[Key points]

open access: yesEarthquake Science
The horizontal-to-vertical spectral ratio (HVSR) method has been used to characterize site-effect parameters that are indispensable in seismic hazard and risk-reduction studies in urban areas and rapid land-use planning.
Ahmad Zaenudin   +3 more
doaj   +1 more source

Validating alternative methods to account for shallow site effects in hybrid broadband ground‐motion simulation of small‐magnitude earthquakes in New Zealand

open access: yesEarthquake Spectra, Volume 41, Issue 5, Page 3914-3948, December 2025.
Proper incorporation of shallow site effects in hybrid broadband ground‐motion simulation is essential to improving predictions at soil sites. This paper validates and compares four methods to account for these effects in the predominantly linear regime, using 1446 ground motions from 213 small‐magnitude earthquakes (3.5≤MW≤5.0) recorded at 38 sites in
Felipe Kuncar   +5 more
wiley   +1 more source

Assessment of seismic vulnerability using the horizontal-to-vertical spectral ratio (HVSR) method in Haenam, Korea

open access: yes, 2021
The town of Haenam in southwest Korea lies partially on reclaimed coastal land and experienced an unprecedented earthquake swarm during April and May 2020.
Kim, Kwang-Hee   +2 more
core   +1 more source

Investigation of the structure and dynamic response of granite weathering crust slopes based on microtremor recordings: A case study of a landslide in Lishui, Zhejiang Province

open access: yesZhongguo dizhi zaihai yu fangzhi xuebao
Granite weathering crust slopes are widely distributed in southeastern China and are highly susceptible to mass landslides during rainy events. Investigating the structure of granite weathering crust slopes and studying the dynamic responses of these ...
Zhen GUO   +5 more
doaj   +1 more source

Estimating site amplification variability in Yangon, Myanmar, from a dense nodal seismic array

open access: yesEarthquake Spectra, Volume 41, Issue 4, Page 3168-3189, November 2025.
We explore a novel acquisition geometry that can be used to estimate the linear component of site amplification using a dense nodal seismic network installed in Yangon, Myanmar’s largest city. The city is surrounded by several seismically active faults, including the Sagaing Fault, which is capable of generating Mw > 7.0 earthquakes.
Md Mohimanul Islam   +4 more
wiley   +1 more source

Modelling the Importance of Ground and Strong‐Motion Variables on the Damage Status in the 2023 Kahramanmaraş Earthquakes Using Supervised Machine Learning

open access: yesGeoscience Data Journal, Volume 12, Issue 4, October 2025.
KNN achieved the highest performance (0.989) using the full dataset and 0.988 with ground‐based parameters. EBd and f0 were key contributors to damage, while PGA dominated strong‐motion models. Specificity consistently outperformed sensitivity in earthquake‐parameter models.
Mustafa Senkaya   +3 more
wiley   +1 more source

New interpretation methods for rockhead determination using passive seismic surface wave data: Insights from Singapore

open access: yesJournal of Rock Mechanics and Geotechnical Engineering
Accurate determination of rockhead is crucial for underground construction. Traditionally, borehole data are mainly used for this purpose. However, borehole drilling is costly, time-consuming, and sparsely distributed.
Yu Zhang   +3 more
doaj   +1 more source

Local site effects evaluation for Aliağa/İzmir using HVSR (Nakamura technique) and MASW methods

open access: yesNatural Hazards, 2017
The site effect plays very important role for planning design of structures and estimating seismic damage of existing structures, especially in seismicity active regions. Aliaga, located in the northern region of the Izmir City, is high seismically active region in western Turkey. We identified the dynamic properties of shallow soil for Aliaga district
Pamuk, Eren   +4 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy