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Article
Open AccessLong-period directivity pulses of strong ground motion during the 2023 Mw7.8 Kahramanmaraş earthquake
Damages due to large earthquakes are influenced by broadband source effects that remain enigmatic. Here we develop a broadband (0–10 Hz) source model of the disastrous 2023 Mw7.8 Kahramanmaraş, Türkiye, earthq...
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Article
Open AccessVirological characteristics of the SARS-CoV-2 XBB variant derived from recombination of two Omicron subvariants
In late 2022, SARS-CoV-2 Omicron subvariants have become highly diversified, and XBB is spreading rapidly around the world. Our phylogenetic analyses suggested that XBB emerged through the recombination of two...
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Article
Open AccessConvergent evolution of SARS-CoV-2 Omicron subvariants leading to the emergence of BQ.1.1 variant
In late 2022, various Omicron subvariants emerged and cocirculated worldwide. These variants convergently acquired amino acid substitutions at critical residues in the spike protein, including residues R346, K...
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Article
SARS-CoV-2 variant prediction and antiviral drug design are enabled by RBD in vitro evolution
SARS-CoV-2 variants of interest and concern will continue to emerge for the duration of the COVID-19 pandemic. To map mutations in the receptor-binding domain (RBD) of the spike protein that affect binding to ...
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Article
Open AccessComplex rupture dynamics on an immature fault during the 2020 Mw 6.8 Elazığ earthquake, Turkey
Physical laws governing friction on shallow faults in the Earth and spatial heterogeneity of parameters are critical to our understanding of earthquake physics and the assessment of earthquake hazards. Here we...
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Article
Back-propagating supershear rupture in the 2016 Mw 7.1 Romanche transform fault earthquake
How an earthquake rupture propagates strongly influences the potentially destructive ground shaking. Complex ruptures often involve slip along multiple faults, which masks information on the frictional behavio...
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Article
Effect of the anti-inflammatory drug diclofenac on lipid composition of bacterial strain Raoultella sp. KDF8
The strain Raoultella sp. KDF8 was cultivated on three sources of carbon and energy, glycerol, ethanol and diclofenac, for periods of time ranging from 24 to 72 h. Using thin-layer chromatography, nine classes of...
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Article
Open AccessGeodynamic subduction models constrained by deep earthquakes beneath the Japan Sea and eastern China
Details of Pacific plate subduction under the Japan Sea and associated current seismicity remain challenging. Seismic tomography reveals a continuous slab dip** at ~30° down to ~600 km, and earthquake mechan...
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Article
Potential of the strain Raoultella sp. KDF8 for removal of analgesics
The bacterial strain KDF8 capable of growth in the presence of diclofenac and codeine analgesics was obtained after chemical mutagenesis of nature isolates from polluted soils. The strain KDF8 was identified as R...
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Chapter
The Significance of Crustal Velocity Model in Moment Tensor Solutions: A Case Study of Yedisu Earthquakes
The North Anatolian Fault Zone is (NAFZ), which is one of the world’s most active seismic structures, runs along the northern part of Turkey. Seismic velocity structure of the crust in the seismically active r...
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Chapter
ISOLA Code for Multiple-Point Source Modeling—Review
ISOLA software package has been developed to invert local or regional full-wave seismograms for single- and multiple-point source models. The code was introduced in 2003; since then it has been continually upg...
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Article
Quantifying capability of a local seismic network in terms of locations and focal mechanism solutions of weak earthquakes
Extension of permanent seismic networks is usually governed by a number of technical, economic, logistic, and other factors. Planned upgrade of the network can be justified by theoretical assessment of the net...
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Article
Inverting full waveforms into 1D seismic velocity model of the upper crust by neighborhood algorithm - Corinth Gulf, Greece
We investigated inversion of full waveforms into formal 1D velocity models. ‘Formal’ means that the models are primarily intended to simulate complete seismograms close to real records, rather than to reflect ...
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Article
Strong fast long-period waves in the Efpalio 2010 earthquake records: explanation in terms of leaking modes
The January 18, 2010, shallow earthquake in the Corinth Gulf, Greece (M w 5.3) generated unusually strong long-period waves (periods 4–8 s) between the P and S ...
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Article
Earthquake location from P-arrival times only: problems and some solutions
Selected problems related to accurate hypocenter locations are discussed in the difficult case that only reliable P-wave readings are available. Near stations are usually only few, and often have a poor azimut...
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Article
Shallow earthquakes: Shallower than expected?
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Article
Problematic non-double-couple mechanism of the 2002 Amfilochia Mw5 earthquake, Western Greece
Two seismic agencies reported a very low double-couple percentage (DC%) of the Amfilochia earthquake, of about 30% and 60%, by Schweizerischer Erdbebendienst and Mediterranean Very Broadband Seismographic Netw...
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Chapter
The Use of UML for Development of a Railway Interlocking System
We present the Unified Modeling Language (UML) and show how it can be applied to development of a new railway interlocking and signalling system. Using a simplified example of an interlocking system, we demons...
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Article
Book Review: Earthquake Processes: Physical Modeling, Numerical Simulation and Data Analysis, Part I and II by M. Matsu'ura, P. Mora, A. Donnellan and X. Yin (Eds.), Birkhäuser Verlag, Basel-Boston-Berlin, 2002, ISBN 3-7643-6915-9 and 6916-7
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Article
The Weak-Motion Modeling of the Skyros Island, Aegean Sea, M w = 6.5 Earthquake of July 26, 2001
The earthquake was modeled using regional broad-band stations in Greece (epicentral distances up to 340 km). Inversion of the amplitude spectra of complete waveforms (0.05–0.08 Hz), later confirmed by the forw...
