Correlation Of Residual Anomaly and Isoseismal Map by Using Power Spectral Density Method in Palu City Region

This research was conducted to see the correlation between residual anomaly map, geological map, and isoseismal map and how they contribute to the determination of earthquake-prone areas. Moreover, the area studied is an area that is difficult to obtain geophysical data such as urban areas. The resi...

Full description

Saved in:
Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2021-12, Vol.936 (1), p.12017
Main Authors: Rasif, Nahari, Pramudhita, Benedictus Dicky Pradnya Agung, Ilman, Alfin Alamsyah, Purwanto, Mohammad Singgih, Widodo, Amien
Format: Article
Language:English
Subjects:
Correlation
Earthquakes
Elevation
Frequency dependence
Geologic mapping
Geological mapping
gravity
palu fault
Power spectral density
Seismic activity
spectral analysis
Urban areas
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This research was conducted to see the correlation between residual anomaly map, geological map, and isoseismal map and how they contribute to the determination of earthquake-prone areas. Moreover, the area studied is an area that is difficult to obtain geophysical data such as urban areas. The residual anomaly is obtained by calculating the bouguer anomaly from elevation data and free-air correction satellite, which then through the FFT process changes the spatial domain to the frequency domain in MATLAB. Thus, it can separate regional anomaly maps with residuals. Using the overlaying technique on two maps, namely residual anomaly maps with isoseismal, a clear correlation was found between the residual anomaly value and the impact of the earthquake as well as the validation of the geological map in the area
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/936/1/012017