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Articles by Satoshi Ide
Hierarchical repeating earthquakes with strong downward directivity
Abstract INTRODUCTION RESULTS DISCUSSION MATERIALS AND METHODS Acknowledgments Supplementary Materials REFERENCES Information & Authors Metrics & Citations View Options References Figures Tables Media Share This article has 0 eLetter . Abstract How and to what extent earthquakes repeat remain key open questions with important implications for early warning and hazard forecasting.
Ultralow-angle faults produce giant earthquakes
Abstract INTRODUCTION RESULTS DISCUSSION MATERIALS AND METHODS Acknowledgments Supplementary Materials REFERENCES Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract What controls the occurrence of giant earthquakes remains a central question in seismology. We reveal a notably simple—but previously overlooked—relationship between earthquake size and fault dip in subduction zones.
Feature of cascading rupture frequently observed in Northern California - Communications Earth & Environment
Abstract Understanding if earthquakes of different sizes start in the same way and whether the growth process of the rupture of large earthquakes is predictable are fundamental questions in earthquake physics. Recent studies indicate the onsets of seismic waves from small and large earthquakes exhibit similar characteristics, suggesting that an earthquake’s onset does not dictate its final size. However, the factors controlling this process remain unclear.
How Earthquakes Grow from a Tiny Fracture to a Catastrophic Event
Our understanding of the governing laws of seismic phenomena has advanced considerably and it is now possible to explain various features with numerical simulations using experiment-based friction laws. However, for the earthquake growth process in which a small rupture grows into a catastrophic event, various observable characteristics cannot be explained using only existing friction laws.
Investigation of oral macrolide prescriptions in Japan using a retrospective claims database, 2013-2018
Basic information on macrolide prescriptions in the 3 years before and after the Action Plan The characteristics of the patients and facilities at which macrolides were prescribed during the entire study period (n = 13,657,028), 2013–2015 (n = 5,242,369), and 2016–2018 (n = 8,414,659) are shown in Table 1. Overall, 6,505,157 (47.4%) of patients were male, with a median (IQR) age of 39 (16–54) years.
The First Systematic Search for Enervated Earthquakes
Earthquakes can be large or small, and energetic or enervated. The vivacity of earthquakes has been measured using stress drop or scaled energy, and some earthquakes have very small stress drop with low energy. Nevertheless, little has been known for such enervated earthquakes.
Longitudinal trends of and factors associated with inappropriate antibiotic prescribing for non-bacterial acute respiratory tract infection in Japan: A retrospective claims database study, 2012-2017
Loading metrics Open Access Peer-reviewed Research Article Yuki Kimura , Haruhisa Fukuda, Kayoko Hayakawa, Satoshi Ide, Masayuki Ota, Sho Saito, Masahiro Ishikane, Yoshiki Kusama, Nobuaki Matsunaga, Norio Ohmagari Yuki Kimura, Haruhisa Fukuda, Kayoko Hayakawa, Satoshi Ide, Masayuki Ota, Sho Saito, Masahiro Ishikane, Yoshiki Kusama, Nobuaki Matsunaga, Norio Ohmagari Published: October 16, 2019 https://doi.org/10.1371/journal.pone.0223835 Figures Abstract Background Inappropriate antibiotic...
Frequent observations of identical onsets of large and small earthquakes
Abstract Every gigantic earthquake begins as a tiny rock failure at almost a point, followed by successive slip of the complex fault system, before radiating strong shaking from a vast rupture area extending over hundreds of kilometres.
Resolving the Detailed Spatiotemporal Slip Evolution of Deep Tremor in Western Japan
We study the detailed spatiotemporal behavior of deep tremor in western Japan through the development and application of a new slip inversion method. Although many studies now recognize tremor as shear slip along the plate interface manifested in low-frequency earthquake (LFE) swarms, a conventional slip inversion analysis is not available for tremor due to insufficient knowledge of source locations and Green's functions.
Detection of earthquake swarms at subduction zones globally: insights into tectonic controls on swarm activity
Earthquake swarms are characterized by an increase in seismicity rate that lacks a distinguished mainshock and does not obey Omori's law. At subduction zones, they are thought to be related to slow-slip events (SSEs) on the plate interface. Earthquake swarms in subduction zones can therefore be used as potential indicators of slow-slip events. However, the global distribution of earthquake swarms at subduction zones remains unclear.
Slip-behavior transitions of a heterogeneous linear fault
Geological faults have frictional heterogeneity. Here, we investigate the slip behavior of such heterogeneous faults in the simplest situation, simulating anti-plane shear slip along an infinite linear fault in a 2D elastic model space, subjected to constant loading by external stresses characterized by stiffness and plate-motion velocity. The fault is discretized into many sub-faults, each of which has either a velocity-weakening (VW) or velocity-strengthening (VS) friction law.
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