What question did this study set out to answer?

To assess seismic vulnerability across the Yogyakarta Basin by determining resonant frequencies, peak spectral ratios, and ground vulnerability indices to guide disaster preparedness.

April 30, 2025International Journal of Design & Nature and EcodynamicsOpen Access

Seismic Vulnerability in Yogyakarta Basin Based on HVSR Frequency Domain Window Rejection Algorithm

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Authors

BSBambang SunardiMeteorological, Climatological, And Geophysical Agency SSSismanto SismantoUniversitas Gadjah Mada EHEddy HartantyoUniversitas Gadjah Mada

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Implication

Geophysical survey reveals elevated ground vulnerability indices across the Yogyakarta Basin, highlighting zones susceptible to severe earthquake motion amplification.

Key Points

To assess seismic vulnerability across the Yogyakarta Basin by determining resonant frequencies, peak spectral ratios, and ground vulnerability indices to guide disaster preparedness.
Recorded ambient seismic microtremors at 707 measurement locations across the Yogyakarta Basin.
Processed microtremor data using automated frequency-domain window rejection algorithms paired with lognormal distribution models to filter noisy records while retaining valid windows.
Identified critical seismic vulnerability in areas exhibiting low resonant frequencies combined with ground vulnerability index (Kg) values exceeding 10.
Mapped widespread ground motion amplification hazards across Sanden, Kretek, Pundong, Bambanglipuro, Jetis, Pleret, Sewon, Berbah, Prambanan, Banguntapan, Kalasan, and sectors of Yogyakarta City.

Cite This Study

Sunardi et al. (2025) studied this question.

synapsesocial.com/papers/6aaa4a935b0996a60171c720 https://doi.org/10.18280/ijdne.200412

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Implication

Geophysical survey reveals elevated ground vulnerability indices across the Yogyakarta Basin, highlighting zones susceptible to severe earthquake motion amplification.

Seismic Vulnerability in Yogyakarta Basin Based on HVSR Frequency Domain Window Rejection Algorithm

Discussion

Member takes

Implication

Key Points

Cite This Study

Seismic Vulnerability in Yogyakarta Basin Based on HVSR Frequency Domain Window Rejection Algorithm

Discussion

Member takes

Implication

Key Points

Cite This Study

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