Results 11 to 20 of about 5,588,444 (128)

About the aftershocks, the Omori law, and the Utsu formula [PDF]

open access: yes, 2023
After the main shock of an earthquake, a stream of aftershocks that does not subside for a long time is usually observed. Fusakichi Omori found that the frequency of aftershocks decreases hyperbolically with time. It has recently been observed that Omori'
Klain, Boris   +3 more
core   +1 more source

The Analysis of the Aftershock Sequences of the Recent Mainshocks in Alaska

open access: yesApplied Sciences, 2022
The forecasting of the evolution of natural hazards is an important and critical problem in natural sciences and engineering. Earthquake forecasting is one such example and is a difficult task due to the complexity of the occurrence of earthquakes. Since
Mohammadamin Sedghizadeh   +1 more
doaj   +1 more source

Dynamic Earthquake Triggering in Southern California in High Resolution: Intensity, Time Decay, and Regional Variability

open access: yesAGU Advances, 2021
Earthquake triggering by seismic waves has been recognized as a phenomenon for nearly 30 years. However, our ability to study dynamic triggering has been limited by our ability to capture the triggering stresses accurately and record the resultant ...
Masatoshi Miyazawa   +2 more
doaj   +1 more source

Aftershock Rate Changes at Different Ocean Tide Heights

open access: yesFrontiers in Earth Science, 2020
The differential probability gain approach is used to estimate quantitatively the change in aftershock rate at various levels of ocean tides relative to the average rate model.
P. N. Shebalin, A. A. Baranov
doaj   +1 more source

Increased earthquake rate prior to mainshocks [PDF]

open access: yes, 2023
According to the Omori-Utsu law, the rate of aftershocks after a mainshock decays as a power law with an exponent close to 1. This well-established law was intensively used in the past to study and model the statistical properties of earthquakes ...
Ashkenazy, Yosef   +3 more
core   +1 more source

A spatio-temporal analogue of the Omori-Utsu law of aftershock sequences

open access: yes, 2021
A spatio-temporal version of the well-known Omori-Utsu law of aftershock sequences is proposed. This 'diffusive Omori-Utsu law' satisfies a nonlinear partial differential equation (PDE). A similarity reduction is obtained that reduces the PDE to an ordinary differential equation (ODE).
openaire   +2 more sources

Regional variations in the diffusion of triggered seismicity [PDF]

open access: yes, 2005
We determine the spatiotemporal characteristics of interearthquake triggering in the International Seismological Centre catalogue on regional and global scales. We pose a null hypothesis of spatially clustered, temporally random seismicity, and determine
Ian G. Main   +3 more
core   +1 more source

Some characteristics of foreshocks and aftershocks of the 2022 ML6.8 Chihshang, Taiwan, earthquake sequence

open access: yesFrontiers in Earth Science
Foreshocks and aftershocks occurred before and after the ML6.8 (Mw7.0) earthquake in eastern Taiwan on 18 September 2022. We explore the epicentral distribution and temporal variations for the mainshock, foreshocks, and aftershocks.
Kou-Cheng Chen   +4 more
doaj   +1 more source

Analisis waktu berakhirnya gempabumi susulan dengan menggunakan metode Omori, Mogi I, Mogi II, dan Utsu untuk kejadian gempabumi di Indonesia tahun 2009-2017 [PDF]

open access: yes, 2018
Indonesia merupakan wilayah yang memiliki tingkat seismisitas yang tinggi karena berada pada wilayah pertemuan tiga lempeng tektonik aktif yang menyebabkan banyaknya zona-zona subduksi dan zona patahan sehingga menjadi sumber terjadinya gempabumi ...
Rohmawati, Tita
core   +1 more source

Can Domain‐Informed Design Improve Neural Spatio‐Temporal Point Processes for Earthquake Forecasting?

open access: yesEarth's Future, Volume 14, Issue 8, August 2026.
Abstract Statistical earthquake forecasting models, such as the Epidemic‐type Aftershock Sequence (ETAS), embed decades of empirical knowledge and assumptions about earthquake triggering, clustering, and catalog completeness. In contrast, neural spatio‐temporal point process (STPP) models often treat seismicity as generic spatiotemporal data without ...
Weixi Tian   +3 more
wiley   +1 more source

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