Spatial patterns of seismogenic faulting in northeastern Asia

Chen, Wang‐Ping

doi:10.1016/j.earscirev.2021.103704

Cited by 4 publications

(2 citation statements)

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“…In this case, there may be some uncertainty in the slip rate obtained using the characteristic recurrence interval and the characteristic displacement. Last but not least, the estimated rate of 0.2-0.3 mm/a is far below the noise level of GPS observations, which makes it unrealistic to apply these low rates of ground motion and sparse data effectively (Chen., 2021).…”

Section: Kinematics and Fault Behavior Of The Yyfz In The Late Quater...mentioning

confidence: 99%

“…The NE China Plain may be a typical area in regard to SCRs, given its low tectonic loading rates, spatial activity migration, weak imprint geology, and the topography of active tectonics (Min et al, 2015a;Yu et al, 2015b;Z. Yu, 2016;Calais, et al, 2016;Yu et al, 2018;Shu et al, 2020;Chen, 2021). The Yilan-Yitong Fault Zone (YYFZ), the northeastern primary branch of the Tancheng-Lujiang Fault Zone (TLFZ) on the NE China Plain, is the largest continentalscale strike-slip active structure in the collision area between the western Pacific Plate and thee Eurasia Plate, with a spacing of ∼30 km and a length of ∼3,600 km; this zone extends from the Northern China Block through Bohai Bay, the NE China Plain, and into the Russian area (Figure 1A).…”

Section: Introductionmentioning

confidence: 99%

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Late Quaternary right-lateral slip rate along the Tangyuan segment of the Yilan–Yitong Fault Zone on the NE China Plain

Yu,

Yin,

Yang

et al. 2024

Front. Earth Sci.

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The slip rate of strike-slip active faults is crucial for fault rupture behavior analysis and seismic hazard assessment. Although many segments of the Yilan–Yitong Fault Zone (YYFZ) in NE China have been strongly deformed since the late Quaternary, little progress has been made on its slip rate. With the help of high-resolution satellite images, detailed field investigations, seismic reflections, and Quaternary chronological dating, we mainly studied the late Quaternary right-slip rate of the YYFZ. Field investigations revealed an ∼15 km long by ∼1–2 m high-surface scarp belt extending along the Tangyuan graben interior, with a series of sag ponds and small parallel bulges. Research has revealed that the most recent paleoearthquake (∼M 7.0) occurred between 2,800± 600 a BP and 1,700 ± 200 a BP, with evidence of coseismic surface rupture. The T2 terrace abandonment age of the Heijin River is approximately 55.13 ± 1.78 ka (OSL), and the maximum cumulative right-lateral offset may reach 110 ± 5 m. Thus, the maximum right-slip rate of the Tangyuan segment of the YYFZ since the late Quaternary is constrained to 1–2 mm/a according to the upper terrace model. This study suggests that the presence of a new fault in the basin interior merits more attention when assessing the influential surface range and earthquake potential along the YYFZ, and the features of “low tectonic loading rate, activity migration in space, and clustering in time separated by ten thousand years of seismic quiescence” observed along the YYFZ are highly important for earthquake model construction and tectonic deformation studies in stable continental regions (SCRs).

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Section: Kinematics and Fault Behavior Of The Yyfz In The Late Quater...mentioning

confidence: 99%