Feedback between megathrust earthquake cycle and plate convergence [PDF]
Scientific Reports, 2023 Over million years, convergence between the Nazca and South America tectonic plates results in Andean orogeny. Over decades/centuries, it fuels the earthquake cycle of the Andean megathrust.
Juan Martin de Blas +3 more
doaj +9 more sources
Megathrust Stress Drop as Trigger of Aftershock Seismicity: Insights From the 2011 Tohoku Earthquake, Japan [PDF]
Geophysical Research Letters, 2023 Numerous normal‐faulting aftershocks in subduction forearcs commonly follow large megathrust earthquakes. Postseismic normal faulting has been explained by stress changes induced by the stress drop along the megathrust. However, details of forearc stress
Kilian B Kemna +2 more
exaly +4 more sources
Coulomb stress change on inland faults during megathrust earthquake cycle in southwest Japan [PDF]
Earth, Planets and Space, 2020 In the subduction zone, megathrust earthquakes may modulate the shallow crustal seismicity in the overriding plate. Historical documents indicate the frequent occurrence of large shallow crustal earthquakes in the overriding continental plate 50 years ...
Tsukasa Mitogawa, Takuya Nishimura
doaj +2 more sources
High probability of successive occurrence of Nankai megathrust earthquakes
Scientific Reports, 2023 Great earthquakes along the Nankai megathrust in south-western Japan feature in the top priority list of Japan’s disaster management agenda. In May 2019, an alert system was incepted to issue public warnings when the probability of an earthquake ...
Yo Fukushima +2 more
doaj +3 more sources
Seismic rate variations prior to the 2010 Maule, Chile MW 8.8 giant megathrust earthquake [PDF]
Scientific Reports, 2021 The MW 8.8 Maule earthquake is the largest well-recorded megathrust earthquake reported in South America. It is known to have had very few foreshocks due to its locking degree, and a strong aftershock activity.
Benoit Derode +2 more
doaj +2 more sources
Evidence of megathrust earthquakes and seismic supercycles in subtropical Japan from millennia-old coral microatolls [PDF]
Nature CommunicationsMegathrust earthquakes in subduction zones often go unreported because they are rare and the historical record is short. On the Ryukyu subduction zone of southwestern Japan, unlike neighboring Nankai Trough, the history and future potential of great ...
Sophie Debaecker +12 more
doaj +2 more sources
Structural barriers control the spatial extent of slow earthquake slip [PDF]
Nature CommunicationsRecent seismological and geodetic observations have revealed shallow slow earthquakes on subduction megathrusts, offering an opportunity to explore the factors controlling megathrust slip.
Takeshi Akuhara +18 more
doaj +2 more sources
Electromagnetic imaging reveals insufficient fluids to explain shallow megathrust creep at the Shumagin Gap [PDF]
Nature CommunicationsThe Shumagin Gap, a creeping segment of the Alaska subduction zone characterized by tsunamigenic structures, experienced a deep rupture during the July 2020 M7.8 earthquake.
Yinchu Li +7 more
doaj +2 more sources
Frontiers in Earth Science, 2022 The southernmost Ryukyu subduction zone may have a geodetically inferred Mw 7.5 to 8.7 megathrust earthquake in a shallow locked region, the Ryukyu fault.
Sean Kuanhsiang Chen +4 more
doaj +1 more source
DONET: A Real-Time Monitoring System for Megathrust Earthquakes and Tsunamis Around Southwestern Japan [PDF]
Oceanography, 2014 DONET (Dense Ocean floor Network for Earthquakes and Tsunamis; https://www.jamstec.go.jp/donet/e/index.html) is a cabled seafloor observatory that monitors the Nankai and Tōnankai seismogenic zones, offshore southwestern Japan, in real time. In 1944, two
Yoshiyuki Kaneda
doaj +1 more source