Results 61 to 70 of about 1,235 (207)

Does Three‐Dimensional Structure Affect Tsunami Excitation and Stress Drop Estimates?—The Case of the 2011 Tohoku Earthquake

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Reliable calculations of coseismic sea‐surface deformation and stress drop are essential for understanding megathrust earthquake rupture and tsunami behavior. However, the impacts of realistic three‐dimensional (3D) structure, such as seafloor topography and structural heterogeneity, on stress‐change calculations and tsunami excitation during ...
Tatsuya Kubota, Tatsuhiko Saito
wiley   +1 more source

Cellular Automaton Equivalence of Megathrust Earthquake Process [PDF]

, 2022
Abstract This paper links the seismic process of a megathrust earthquake with a cellular automaton (CA) and paves the way for understanding the seismic process by investigating CA. During the seismic process of the Great East Japan Earthquake (GEJE) of magnitude 9, anomalous noise with large amplitude in the frequency range of 3 Hz to 10Hz is ...
openaire   +1 more source

Earthquake rupture properties and tsunamigenesis in the shallowest megathrust [PDF]

, 2020
<p>Seismological data provide compelling evidence of a depth-dependent rupture behavior of megathrust earthquakes. Relative to deeper events of similar magnitude, shallow earthquake ruptures have larger slip and longer duration, radiate energy that is depleted in high frequencies and have a larger discrepancy between their ...
Valenti Sallares, Cesar R. Ranero, Manel Prada, Alcinoe Calahorrano B.   +3 more
openaire   +1 more source

Potential impact and return period analysis study of Sumatra paleo megathrust earthquake using scaling law relations of earthquake parameter (case study: Siberut-West Sumatra megathrust earthquake 1797, Mw 8.2 ~ 8.8)

, 2023
The paleo-megathrust earthquake occurred in Siberut, West Sumatra in 1797 and it was estimated to have a magnitude (Mw) of about 8.2–8.8. This earthquake triggered a tsunami in the West Sumatra coast and its vicinity.
Jaya Murjaya, Sutiyono, Katsumi Hattori, Aditya Setyo Rahman, Suaidi Ahadi, Petrus Demon Sili, Dwikorita Karnawati, Dedi Sugianto, Sulastri   +8 more
core   +1 more source

Linking 3D Long‐Term Slow‐Slip Cycle Models With Rupture Dynamics: The Nucleation of the 2014 Mw 7.3 Guerrero, Mexico Earthquake

AGU Advances
Slow slip events (SSEs) have been observed in spatial and temporal proximity to megathrust earthquakes in various subduction zones, including the 2014 Mw 7.3 Guerrero, Mexico earthquake which was preceded by a Mw 7.6 SSE.
Duo Li, Alice‐Agnes Gabriel
doaj   +1 more source

Block Kinematics, Interseismic Coupling and Fault Slip Rates in the Aegean Region From GPS and Earthquake Slip Vector Data: 2. Hellenic Subduction System

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.
Abstract The Hellenic subduction system is the primary locus of Nubia‐Eurasia convergence, yet the distribution of strain accumulation along it is still debated. Here, we invert 832 geodetic velocities and 146 earthquake slip vectors to assess the spatial variability of interseismic locking and provide new constraints on the rate of slip deficit ...
Konstantinos Chousianitis, Volkan Özbey, Sotiris Sboras, Robert McCaffrey, Semih Ergintav   +4 more
wiley   +1 more source

Regional changes in streamflow after a megathrust earthquake [PDF]

Earth and Planetary Science Letters, 2017
Abstract Moderate to large earthquakes can increase the amount of water feeding stream flows, mobilizing excess water from deep groundwater, shallow groundwater, or the vadose zone. Here we examine the regional pattern of streamflow response to the Maule M8.8 earthquake across Chile's diverse topographic and hydro-climatic gradients.
Mohr, Christian H, Manga, Michael, Wang, Chi-Yuen, Korup, Oliver   +3 more
openaire   +4 more sources

Lithosphere‐Asthenosphere Interactions Across the Indo‐Burma Subduction Zone From Sp Receiver Functions

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract The Cenozoic convergence between the Indian and Asian plates has driven large‐scale mantle convection that interacts with both plates. Understanding this convergence benefits from clear imaging of the lithosphere‐asthenosphere boundary (LAB).
Yiming Bai, Xiaohui Yuan, Frederik Tilmann, Bernd Schurr, Yinshuang Ai, Yumei He, Shengji Wei, Guangbing Hou, Myo Thant, Kyaing Sein, Oo Than, Mingming Jiang, Ping Tong   +12 more
wiley   +1 more source

Spatiotemporal seismic hazard and risk assessment of M9.0 megathrust earthquake sequences of wood-frame houses in Victoria, British Columbia, Canada [PDF]

, 2020
Megathrust earthquake sequences, comprising mainshocks and triggered aftershocks along the subduction interface and in the overriding crust, can impact multiple buildings and infrastructure in a city.
Tesfamariam, Solomon, Katsuichiro Goda, Werner, Maximilian J, Goda, Katsuichiro, Solomon Tesfamariam, Zhang, Lizhong, Tesfamarian, Solomon, Maximilian J. Werner, Lizhong Zhang, Werner, Maximilian   +9 more
core   +1 more source

An unexplained tsunami: Was there megathrust slip during the 2020 Mw7.6 Sand Point, Alaska, earthquake?

Seismica
On October 19, 2020, the Mw7.6 Sand Point earthquake struck south of the Shumagin Islands in Alaska. Moment tensors indicate the earthquake was primarily strike-slip, yet the event produced an enigmatic tsunami that was larger and more widespread than ...
Sean Santellanes, Dara Goldberg, Pablo Koch, Diego Melgar, William Yeck, Brendan Crowell, Jiun-Ting Lin   +6 more
doaj   +1 more source