Preprints
Search for earthquake (502 results)
Shortening and extrusion in the East Anatolian Plateau: how was Neogene Arabia-Europe convergence tectonically accommodated?
Published: 2023-12-20
Subjects: Physical Sciences and Mathematics
Deformation in orogenic belts is typically widely distributed but may be localized to form discrete, fast-moving fault zones enclosing semi-rigid microplates. An example is the Anatolian microplate, which is extruding westwards from the East Anatolian Plateau in the Arabia-Eurasia collision zone along the North and East Anatolian Faults that cause devastating earthquakes, including the February [...]
Potential Volcanic Origin of the 2023 short-period Tsunami in the Izu Islands, Japan
Published: 2023-11-29
Subjects: Physical Sciences and Mathematics
On October 8, 2023, at 21:40 UTC (6:40 on October 9 local time), a tsunami warning was declared for the Izu Islands and southwest Japan. This tsunami was initially considered to be associated with the M4.9 earthquake at 20:25 UTC (5:25 JST). However, we know events of this magnitude are far too small to generate observed tsunamis from coseismic deformation alone. In this study, we analyzed the [...]
Deep Learning for Deep Earthquakes: Insights from OBS Observations of the Tonga Subduction Zone
Published: 2023-11-06
Subjects: Earth Sciences, Geophysics and Seismology, Physical Sciences and Mathematics
Applications of machine learning in seismology have greatly improved our capability of detecting earthquakes in large seismic data archives. Most of these efforts have been focused on continental shallow earthquakes, but here we introduce an integrated deep-learning-based workflow to detect deep earthquakes recorded by a temporary array of ocean-bottom seismographs (OBSs) and land-based stations [...]
WITHDRAWN: Magma as a generator of plasma and thermonuclear reactions in the bowels of the Earth?
Published: 2023-11-02
Subjects: Education, Engineering, Physical Sciences and Mathematics
Abstract removed when submission was withdrawn.
WITHDRAWN: Seismology for Dummies
Published: 2023-11-02
Subjects: Education, Engineering, Physical Sciences and Mathematics
Abstract removed when submission was withdrawn.
WITHDRAWN: Earthquakes and Other Seismic Processes as Part of Impact Theory
Published: 2023-11-01
Subjects: Education, Engineering, Physical Sciences and Mathematics
Abstract removed when submission was withdrawn.
WITHDRAWN: The Energy of Earthquakes. What's Wrong with the Elastic Recoil Theory?
Published: 2023-11-01
Subjects: Education, Engineering, Physical Sciences and Mathematics
Abstract removed when submission was withdrawn.
WITHDRAWN: Thermonuclear Fusion as a Source of Seismic Phenomena?
Published: 2023-11-01
Subjects: Education, Engineering, Physical Sciences and Mathematics
Abstract removed when submission was withdrawn.
WITHDRAWN: The Quantum Mechanism of Earthquakes as Exemplified by a Sudden Ejection of Rocks and Gas from a Rock Mass during the Process of a Coulomb Explosion
Published: 2023-10-31
Subjects: Education, Physical Sciences and Mathematics
Abstract removed when submission was withdrawn.
Detection of Hidden Low-Frequency Earthquakes in Southern Vancouver Island with Deep Learning
Published: 2023-10-19
Subjects: Physical Sciences and Mathematics
Low-frequency earthquakes (LFEs) are small-magnitude earthquakes that are depleted in high-frequency content relative to traditional earthquakes of the same magnitude. These events occur in conjunction with slow slip events (SSEs) and can be used to infer the space and time evolution of SSEs. However, because LFEs have weak signals, and the methods used to identify them are computationally [...]
Climate- and Weather-Driven Solid-Earth Deformation and Seismicity
Published: 2023-10-10
Subjects: Physical Sciences and Mathematics
There is long-standing interest in the interactions between atmospheric and hydrological processes and solid Earth deformation, including the occurrence of earthquakes. Here, we review evidence for the effects of climatic processes and weather on deformation and seismicity in the lithosphere over a wide range of time scales, ranging from load cycles associated with the ice ages to the effects of [...]
Coral geochemical response to uplift in the aftermath of the 2005 Nias-Simeulue earthquake
Published: 2023-10-07
Subjects: Environmental Indicators and Impact Assessment, Geochemistry, Geomorphology, Natural Resources and Conservation, Tectonics and Structure
On 28 March 2005, the Indonesian islands of Nias and Simeulue experienced a powerful Mw 8.6 earthquake and widespread co-seismic uplift and subsidence. In areas of coastal uplift (up to ~2.8 m), fringing reef coral communities were killed by exposure, while deeper corals that survived were subjected to habitats with altered runoff, sediment and nutrient regimes. Here we present time-series [...]
Revisiting the 2015 Mw=8.3 Illapel earthquake: Unveiling complex fault slip properties using Bayesian inversion.
Published: 2023-10-02
Subjects: Physical Sciences and Mathematics
The 2015 moment magnitude Mw=8.3 Illapel earthquake is the largest mega-thrust earthquake that has been recorded along the Chilean subduction zone since the 2010 M_W=8.8 Maule earthquake. Previous studies indicate a rupture propagation from the hypocenter to shallower parts of the fault, with a maximum slip varying from 10 to 16 meters. The amount of shallow slip differs dramatically between [...]
Lower-Crustal Normal Faulting and Lithosphere Rheology in the Atlas Foreland
Published: 2023-10-02
Subjects: Physical Sciences and Mathematics
Earthquakes beneath the foreland basins of the Andes and Tibet follow a simple pattern, with normal-faulting events from 0--20 km depth and reverse-faulting events from 30--50 km depth. The switch in faulting style with depth suggests that the elastic stresses generated by flexure within these forelands are large enough to break faults, with opposite senses of horizontal strain either side of a [...]
The Holocene to Modern Fraser River Delta, Canada: Geological History, Processes, Deposits, Natural Hazards, and Coastal Management
Published: 2023-10-01
Subjects: Physical Sciences and Mathematics
The Fraser River Delta (FRD) is a large sedimentary system and home to Metro Vancouver, situated within the unceded territories of several First Nations. This review provides an overview of the geological evolution of the FRD, connecting hydrodynamic processes with sedimentary deposits across its diverse environments, from the river to the delta slope. The study emphasizes the implications of [...]