Results 31 to 40 of about 35,383 (248)

Studies of Earthquake Energies in Taiwan: A Review

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2016
This paper reviews studies on earthquake energies, seismic efficiency, radiation efficiency, scaled energy and energy-magnitude law conducted by Taiwan seismologists and foreigners who used seismic data from Taiwan to study these problems.
Jeen-Hwa Wang
doaj   +1 more source

Focal mechanism of Luding M 6.8 earthquake, September 2022 and analysis of the loading role of the tectonic stress on the seismogenic fault

open access: yesEarthquake Research Advances, 2023
To reveal the seismogenic mechanism of the Luding earthquake, we employed the 118 China Seismic Network stations to collect the P-wave polarity data from each station, which was then used in the P-wave first motion approach to calculate the focal ...
Yansong Hu   +3 more
doaj   +1 more source

Earthquake magnitude estimation from early radiated energy

open access: yesGeophysical Research Letters, 2008
From inspection of a large set of Japanese events, we investigate the scaling of the early radiated energy, inferred from the squared velocity integral (IV2) with the final magnitude of the event. We found that the energy can only discriminate whether the event has a magnitude larger or smaller than 5.8, and in the latter case it can allow for real ...
FESTA, GAETANO, ZOLLO, ALDO, Lancieri M.
openaire   +2 more sources

3D numerical simulation of hydro-acoustic waves registered during the 2012 negros-cebu earthquake [PDF]

open access: yes, 2019
The paper investigates on the hydro-acoustic waves propagation caused by the underwater earthquake, occurred on 6 February 2012, between the Negros and Cebu islands, in the Philippines.
Bellotti, Giorgio   +3 more
core   +1 more source

On the puzzling feature of the silence of precursory electromagnetic emissions [PDF]

open access: yes, 2013
It has been suggested that fracture-induced MHz-kHz electromagnetic (EM) emissions, which emerge from a few days up to a few hours before the main seismic shock occurrence permit a real-time monitoring of the damage process during the last stages of ...
Chelidze, T.   +2 more
core   +2 more sources

Rupture Process of Subduction-Zone Earthquakes [PDF]

open access: yes, 1986
This review is primarily concerned with the rupture process of large subduction-zone earthquakes determined by various seismological methods, and with its interpretation in terms of an asperity model.
Kanamori, Hiroo
core   +1 more source

The robustness of seismic moment and magnitudes estimated using spectral analysis [PDF]

open access: yes, 2014
calculate seismic moment. This is an important topic for operators and regulators who require good magnitude estimates when monitoring induced seismicity.
Abercrombie   +36 more
core   +2 more sources

Source Parameters of the 2005 Mw 7.2 Miyagi-Oki, Japan, Earthquake as Inferred from Teleseismic P-Waves

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2010
We investigate the fault parameters of the 2005 Miyagi-Oki (Japan) earthquake using duration variations of teleseismic P-waves. The results show that the earthquake has a thrust-type mechanism and a seismic moment of 4.46 ¡_ 1019 Nm.
Ruey-Der Hwang   +4 more
doaj   +1 more source

Earth’s gravity ― the reason of earthquakes

open access: yesГеофизический журнал, 2019
In the paper, an attempt has been made to describe seismic processes by means of classical mechanics. Dynamic parameters such as energy, impulse, and forces that determine the movement of masses are estimated.
S. V. Mishin   +2 more
doaj   +1 more source

Estimating Rupture Front of Large Earthquakes Using a Novel Multi-Array Back-Projection Method

open access: yesFrontiers in Earth Science, 2021
A ruptured front obtained from high-frequency energy radiation is the key to understand the complex source. It is commonly observed that rupture fronts derived from different arrays often show some variations due to the obvious difference of the ...
Hailin Du
doaj   +1 more source

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