Results 51 to 60 of about 4,644 (163)

Characteristics of Seismic Energy Rate Functions of Shallow Tremors

Geophysical Research Letters
We investigated the energy rate functions of shallow tremors southeast of the Kii Peninsula in the Nankai subduction zone. Unimodal functions (triangle or bell‐shaped) explain the characteristics of small (
Shunsuke Takemura, Suguru Yabe
doaj   +1 more source

Effects of Near‐Fault Sedimentary Rocks and Damage on the 2019 Ridgecrest, CA Earthquake: A Rupture Impediment or a Ground Motion Booster?

Geophysical Research Letters
Observations of the 2019 magnitude 7.1 Ridgecrest, California, earthquake indicate a relatively slow rupture (∼2 km/s). The fault is surrounded by sedimentary rocks and low‐velocity damage zones, which can amplify ground motions but also slow down ...
Elif Oral, Jean Paul Ampuero, Domniki Asimaki   +2 more
doaj   +1 more source

Spontaneous complexity in the dynamics of slow laboratory earthquakes.

Nature Communications
Rock deformation experiments play a key role in our understanding of earthquake physics and friction constitutive laws. These laws commonly describe the response of analogue laboratory faults as a simple and homogeneous system, without accounting for the spatial-temporal evolution of structures in the sample.
Giacomo Pozzi, Giuseppe Volpe, Jacopo Taddeucci, Massimo Cocco, Chris Marone, Cristiano Collettini   +5 more
openaire   +2 more sources

Frontal Thrust Ramp‐Up and Slow Earthquakes Due To Underthrusting of Basement High in the Nankai Trough

Geochemistry, Geophysics, Geosystems
Recently, integrated geophysical‐geological surveys in the Nankai subduction zone in Japan have revealed that slow earthquakes repeatedly occur beneath the outer wedge of the forearc.
G. Kimura, K. Shiraishi, Y. Nakamura, S. Kodaira, G. Fujie, R. Arai, G. F. Moore   +6 more
doaj   +1 more source

Getting to the Bottom of Slow-Motion Earthquakes

Eos, 2020
For close to 20 years, slow-motion earthquakes have been an enigma. Core samples provide new clues to their origins.
openaire   +1 more source

Modeling fast and slow earthquakes at various scales

Proceedings of the Japan Academy, Series B, 2014
Earthquake sources represent dynamic rupture within rocky materials at depth and often can be modeled as propagating shear slip controlled by friction laws. These laws provide boundary conditions on fault planes embedded in elastic media. Recent developments in observation networks, laboratory experiments, and methods of data analysis have expanded our
openaire   +3 more sources

Relationship of preseismic, coseismic, and postseismic fault ruptures of two large interplate aftershocks of the 2011 Tohoku earthquake with slow-earthquake activity. [PDF]

Sci Rep, 2020
Kubo H, Nishikawa T.
europepmc   +1 more source

Data assimilation for fault slip monitoring and short-term prediction of spatio-temporal evolution of slow slip events: application to the 2010 long-term slow slip event in the Bungo Channel, Japan

Earth, Planets and Space
Monitoring and predicting fault slip behaviors in subduction zones is essential for understanding earthquake cycles and assessing future earthquake potential. We developed a data assimilation method for fault slip monitoring and the short-term prediction
Masayuki Kano, Yusuke Tanaka, Daisuke Sato, Takeshi Iinuma, Takane Hori   +4 more
doaj   +1 more source

Similarities and Differences Between Natural and Simulated Slow Earthquakes

Geophysical Research Letters
We investigate similarities and differences between natural and simulated slow earthquakes using nonlinear dynamical system tools. We use spatio‐temporal slip potency rate data derived from Global Navigation Satellite System (GNSS) position time series ...
A. Gualandi, L. Dal Zilio, D. Faranda, G. Mengaldo   +3 more
doaj   +1 more source

Comparative Analysis of Seismicity Across Three Depth‐Dependent Slip Regimes in the Japan Trench Subduction Zone

Geophysical Research Letters
Understanding the cause of spatial variations in seismicity is crucial for comprehending the physics governing earthquake activity. Off Iwate, in the northern Japan Trench subduction zone, the plate boundary can be divided into three distinct zones based
Yuta Ito, Tomoaki Nishikawa, Yoshihiro Ito, Shukei Ohyanagi, Hiroyuki Noda   +4 more
doaj   +1 more source