A5029551265- earthquake and tectonic studies
- Coastal and Marine Dynamics
- High-pressure geophysics and materials
- Geological and Geochemical Analysis
- Ocean Waves and Remote Sensing
- Tropical and Extratropical Cyclones Research
- Methane Hydrates and Related Phenomena
- Seismic Waves and Analysis
- Wind Energy Research and Development
- Oceanographic and Atmospheric Processes
- Earthquake and Tsunami Effects
- Building Energy and Comfort Optimization
- Solar Thermal and Photovoltaic Systems
- Phase Change Materials Research
- Earthquake Detection and Analysis
- Geological and Geophysical Studies
- Wind and Air Flow Studies
- Aerodynamics and Fluid Dynamics Research
- Adsorption and Cooling Systems
- Coastal wetland ecosystem dynamics
- Sustainable Building Design and Assessment
- Fluid Dynamics and Vibration Analysis
- Fluid Dynamics Simulations and Interactions
- Vibration and Dynamic Analysis
- Climate variability and models
Zhejiang Ocean University
2018-2025
Zhejiang University
2018-2025
Sanya University
2021-2025
Inner Mongolia University of Technology
2021-2024
University of Hong Kong
2022-2024
Zhoushan Hospital
2024
University of Hawaiʻi at Mānoa
2011-2022
University of Hawaii System
2013-2017
Inner Mongolia University
2011
Institute of Oceanology
2006
Abstract The 1938 M S 8.3 and 2021 W 8.2 earthquakes both ruptured within the Semidi segment of Aleutian‐Alaska subduction zone. large‐slip distribution event is well constrained depth range 25–45 km, with seaward tsunami observations excluding significant shallower coseismic slip. slip more uncertain. Regional far‐field tide gauge for are modeled to constrain location large largest (2.0 m) located below continental shelf on a 180‐km‐long portion rupture extending further northeast than...
Abstract The 25 October 2010 Mentawai tsunami earthquake ( M w 7.8) ruptured the shallow portion of Sunda megathrust seaward Islands, offshore Sumatra, Indonesia, generating a strong that took 509 lives. rupture zone was updip those 12 September 2007 8.5 and 7.9 underthrusting earthquakes. High‐rate (1 s sampling) GPS instruments Sumatra Array network deployed on Islands mainland recorded time‐varying static ground displacements at epicentral distances from 49 to 322 km. Azimuthally...
Abstract The 13 November 2016 Kaikoura, New Zealand, M w 7.8 earthquake ruptured multiple crustal faults in the transpressional Marlborough and North Canterbury tectonic domains of northeastern South Island. Hikurangi trench underthrust Pacific slab terminate region south as subdution zone transitions to Alpine fault strike‐slip regime. It is difficult establish whether any coseismic slip occurred on megathrust from on‐land observations. rupture generated a tsunami well recorded at tide...
Abstract On 8 September 2017, a great ( M w 8.2) normal faulting earthquake ruptured within the subducting Cocos Plate ~70 km landward from Middle American Trench beneath Tehuantepec gap. Iterative inversion and modeling of teleseismic tsunami data prediction GPS displacements indicate that steeply dipping rupture extended ~180 to northwest along strike toward Oaxaca coast ~30 70 in depth, with peak slip ~13 m. The likely broke through entire lithosphere young subducted slab response downdip...
Abstract A major ( M W 7.9) intraplate earthquake ruptured the Pacific plate seaward of Alaska subduction zone near Kodiak Island on 23 January 2018. The aftershock seismicity is diffuse, with both NNW‐ and ENE‐trending distributions, while long‐period point source moment tensors have near‐horizontal compressional tensional principal strain axes significant non‐double‐couple components. Backprojections from three large‐aperture networks indicate sources short‐period radiation not aligned...
Abstract A great earthquake struck the Semidi segment of plate boundary along Alaska Peninsula on 29 July 2021, re‐rupturing part 1938 rupture zone. The 2021 M W 8.2 Chignik occurred just northeast 22 2020 7.8 Simeonof earthquake, with little slip overlap. Analysis teleseismic P and SH waves, regional Global Navigation Satellite System (GNSS) displacements, near‐field far‐field tsunami observations provides a good resolution process. During ∼60‐s long faulting, was nonuniformly distributed...
[1] The 2011 Tohoku tsunami devastated the northeastern Japan coasts and caused localized damage to coastal infrastructure across Pacific. resulted in strong currents around Hawaiian Islands that led closure of harbors marinas for up 38 h after its arrival. We utilize a nonhydrostatic model reconstruct event from seismic source elucidation physical processes inference hazards. A number tide gauges, bottom pressure sensors, ADCPs provided point measurements validation assessment results...
Abstract Non-hydrostatic multi-layer models have become a popular tool in describing wave transformation from deep water to the surf zone, but numerical approach lacks theoretical framework guide implementation and assist interpretation of results. In this paper, we formulate non-hydrostatic model an analytical form for derivation examination dispersive nonlinear properties. Depth integration dimensionless continuity Euler equations over each layer yields conventional formulation. A variable...
Strong tsunami excitation from slow rupture of shallow subduction zone faults is recognized as a key concern for hazard assessment. Three months after the 22 July 2020 magnitude 7.8 thrust earthquake struck plate boundary below Shumagin Islands, Alaska, 7.6 aftershock ruptured with complex intraplate faulting. Despite smaller size and predominantly strike-slip faulting mechanism inferred seismic waves aftershock, it generated much larger than mainshock. Here we show through detailed analysis...
SUMMARY This paper presents the derivation of a depth‐integrated wave propagation and runup model from system governing equations for two‐layer non‐hydrostatic flows. The are transformed into an equivalent, system, which separately describes flux‐dominated dispersion‐dominated processes. reproduces linear dispersion relation within 5 error water depth parameter up to kd = 11, while allowing direct implementation momentum conservation scheme breaking moving‐waterline technique calculation. A...
SUMMARY Non‐hydrostatic free‐surface models can provide better descriptions of dispersive waves by increasing the number layers at expense computational efficiency. This paper proposes a parameterized non‐hydrostatic pressure distribution in depth‐integrated two‐layer formulation to reduce costs and maintain essential dispersion properties for modeling coastal processes. The mid flow depth is expressed terms bottom with free parameter, which determined match exact linear relation water...
Abstract The Shumagin seismic gap along the Alaska Peninsula experienced a major, M W 7.8, interplate thrust earthquake on 22 July 2020. Several available finite‐fault inversions indicate patchy slip of up to 4 m at 8–48 km depth. There are differences among models in peak and absolute placement plate boundary, resulting from data distributions, model parameterizations, inversion algorithms. Two representative obtained large geodetic sets produce very different tsunami predictions tide...
The last decade has seen the rapid emergence of nonhydrostatic modeling as an advanced tool for studies tsunami processes and source mechanisms that warrants a critical assessment state art value-added features in relation to contemporary approaches. Inclusion depth-averaged vertical velocity pressure nonlinear shallow-water equations enables description long-wave dynamics quasi three-dimensional flows. governing involve first-order derivatives, but retain higher-order properties,...
Nonhydrostatic modeling has emerged as an effective tool for seismological and tsunami research over a decade, but its general application in hazard mapping engineering design remains topic of discussion. The approach incorporates the depth-averaged vertical velocity nonhydrostatic pressure nonlinear shallow-water equations that provide Poisson-type equation via conservation mass quasi-three-dimensional flows. After 2011 Tohoku tsunami, State Hawaii augmented existing inundation maps to...
Abstract The 1 April 2014 Iquique M w 8.1 earthquake ruptured a segment of the megathrust fault offshore northern Chile and generated moderate‐size tsunami across Pacific. Tide gauges in Hawaii recorded over m wave height despite long distance from source position away main radiated energy lobe. Inversion global teleseismic body waves combined with forward modeling at four near‐field DART stations arrives iteratively self‐consistent finite‐fault model very compact dimensions. slip...