Energy radiation from intermediate- to large-magnitude earthquakes: Implications for dynamic fault weakening [PDF]
Journal of Geophysical Research: Solid Earth, 2010 The amount of energy radiated from an earthquake can be measured using recent methods based on earthquake coda signals and spectral ratios. Such methods are not altered by either site or directivity effects, with the advantage of a greatly improved ...
Kevin Mayeda +7 more
core +2 more sources
Geophysical Research LettersMegathrust earthquakes often break the slab‐crust interface and radiate high‐frequency seismic waves from the down dip of their coseismic slip. In contrast, we show that the 2021 Mw8.1 Kermadec earthquake deviates from this mode. We resolve the kinematic
Hongyu Zeng, Shengji Wei, Hongfeng Yang
doaj +2 more sources
Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement
Geophysical Monograph Series, Page 27-82., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm +2 more
wiley +3 more sources
Representations of the radiated energy in earthquakes [PDF]
Geophysical Journal International, 2005 We investigate the representation of the radiated energy, E_R, in earthquakes. In seismology E_R is estimated from either far-field seismic waves or the stress and displacement on the fault plane. Although E_R comes from the entire volume of the Earth, it can be expressed as an integral over the fault plane.
Rivera, Luis, Kanamori, Hiroo
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Atmosphere, 2021 We present a comprehensive analysis of pre-seismic anomalies as computed from the ground and space-based techniques during the recent Samos earthquake in Greece on 30 October 2020, with a magnitude M = 6.9.
Sudipta Sasmal +7 more
doaj +1 more source
Radiated energy and the physics of earthquake faulting [PDF]
Eos, Transactions American Geophysical Union, 2005 On the third day of a recent AGU Chapman Conference, held in Portland, Maine, near the Two Lights fault zones and the Fort Foster brittle zone, conference participants spent the gray June day scrambling over rocky ledges above the crashing surf along the coast of the Atlantic Ocean.With field trip leader Mark Swanson, who with his students has studied ...
McGarr, A. +2 more
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The Earth's Surface Controls the Depth‐Dependent Seismic Radiation of Megathrust Earthquakes
AGU Advances, 2021 Megathrust earthquakes exhibit a ubiquitous seismic radiation style: low‐frequency (LF) seismic energy is efficiently emitted from the shallowest portion of the fault, whereas high‐frequency (HF) seismic energy is efficiently emitted from the deepest ...
Jiuxun Yin, Marine A. Denolle
doaj +1 more source
Energy Radiation from a Multi-Story Building [PDF]
, 2004 Damping limits the resonance of vibrating systems and thus higher anelastic damping is generally favored for engineered structures subjected to earthquake motions, because it means that a structure can dissipate a larger percentage of its energy per ...
Favela, Javier
core +1 more source
Dissipation of Energy Radiated by Earthquakes
Annals of Geophysics, 2010 SUMMARY. - Representing radiated seismic energy as a sum of normal modes<br />we are able to develop approximate equations describing the dissipation of<br />this energy in the earth by solid friction. In particular we calculate total energy<br />radiated and spherically averaged dissipation as a function of depth.
R. BULAND, E. GILBERT
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Earthquake Source Characterization Using 3D Numerical Modeling [PDF]
, 2007 To understand the physics of earthquakes, it is important to know what happens during individual events. Dissembling the information about the source process from the recorded seismograms is a difficult and non-unique process, as there are severe trade ...
Hjörleifsdóttir, Vala
core +1 more source