Gravity Anomaly From Satellite Gravity Gradiometry Data by GOCE in Japan Ms9.0 Strong Earthquake Region

Zhang, Yongzhi; Xu, Haijun; Wei-dong, Wang; Duan, Hongbo; Zhang, Benping

doi:10.1016/j.proenv.2011.09.086

Cited by 6 publications

(4 citation statements)

References 17 publications

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“…Classical teleseismic body wave inversion that uses the global wideband seismic network can be analyzed immediately after significant earthquakes [16]. On the other hand, as a geodetic method, gravity data can be gathered by the satellite technique [17][18][19][20]. The gravity method, notably with the Global Gravity Model plus (GGMPlus) data [20][21][22], is a high accuracy, promising, quick, economical, and simple methodology to identify the fault structure distribution [23][24][25], as applied to pinpoint the GSF in Aceh Province [26].…”

Section: Introductionmentioning

confidence: 99%

The 2022 Mw 6.1 Pasaman Barat, Indonesia Earthquake, Confirmed the Existence of the Talamau Segment Fault Based on Teleseismic and Satellite Gravity Data

et al. 2022

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A Mw 6.1 earthquake on 25 February 2022, at around 8:39 a.m. local time, struck Pasaman Barat Regency, West Sumatra, Indonesia, and was felt in Singapore and Malaysia. The hypocenter of this earthquake was 12 km deep and preceded by an Mw 4.9 foreshock a few minutes earlier. The earthquakes originated on a blind fault and triggered a landslide at Mount Talamau. Herein, the slip distribution and asperities along the plane fault during the earthquake were examined by teleseismic inversion and the fault location was identified by Global Gravity Model plus (GGMPlus) satellite gravity data. The slip distribution was calculated from the source parameters (strike: 136°; dip: 70°; rake: 174°) by inversion techniques based on teleseismic data. Based on the slip distribution, the earthquake was generated by stress from the Sianok fault that spread to the north and reached the uncertain fault segment in the Talamau area. In addition, the results of the First Horizontal Derivative and Second Vertical Derivative from the GGMplus data revealed a straight Simple Bouguer Anomaly pattern, confirming the existence of the uncertain Talamau fault as part of the Great Sumatra Fault. This work shows the potential application of the combination of teleseismic and gravity observation for delineating the fault structure that caused the 2022 Mw 6.1 Pasaman earthquake, which can also be applied to other locations of similar geological backgrounds.

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Section: Introductionmentioning

confidence: 99%

The 2022 Mw 6.1 Pasaman Barat, Indonesia Earthquake, Confirmed the Existence of the Talamau Segment Fault Based on Teleseismic and Satellite Gravity Data

et al. 2022

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“…The study using meaured SGG data is few. Zhang [7] computed the gravity anomaly in Japan Ms9.0 strong earthquake region using the observed SGG data. Xu [8] obtained the gravity anomaly distribution using GOCE gravity field model data.…”

Section: Introductionmentioning

confidence: 99%

Crustal Thickness of Chinese Mainland Inversed by GOCE Satellite Gravity Data

Duan

Zhou

2014

AMM

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GOCE satellite gravity data is often used to compute gravity anomaly and geoid height. In the paper, GOCE gravity data is used to inverse the crustal thickness of Chinese mainland (E70°~130°, N20°~50°) in this paper. In order to test the reliability of the result, the computing result is compared with previous studies. The comparative analysis shows that the inversion result by GOCE gravity data has higher resolution and has good consistence with the previous studies.

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“…The study using actual observed SGG data is few. Zhang [12] analyzed the gravity anomaly in Japan Ms9.0 strong earthquake region using the observed SGG data. In this paper, gravity anomaly is computed using the latest satellite gravity gradiometry data (Nov. 1, 2009-Jul.…”

Section: Introductionmentioning

confidence: 99%

Gravity Anomaly Computed by GOCE Data in Northeastern Margin of Tibetan Plateau

Zhang

Duan

2011

AMM

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In this paper, gravity anomaly in northeastern margin of Tibetan Plateau (90ºand 110º E, 28ºand 42º N) is computed using satellite gravity gradiometry data from GOCE satellite. The computed gravity anomaly is compared with the topographical data and location of some strong earthquakes in this region. The result shows that gravity anomaly has good conformity with the regional tectonic distribution and strong earthquake usually occurred in the steep gravity gradient zone.

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Gravity Anomaly From Satellite Gravity Gradiometry Data by GOCE in Japan Ms9.0 Strong Earthquake Region

Cited by 6 publications

References 17 publications

The 2022 Mw 6.1 Pasaman Barat, Indonesia Earthquake, Confirmed the Existence of the Talamau Segment Fault Based on Teleseismic and Satellite Gravity Data

The 2022 Mw 6.1 Pasaman Barat, Indonesia Earthquake, Confirmed the Existence of the Talamau Segment Fault Based on Teleseismic and Satellite Gravity Data

Crustal Thickness of Chinese Mainland Inversed by GOCE Satellite Gravity Data

Gravity Anomaly Computed by GOCE Data in Northeastern Margin of Tibetan Plateau

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