Results 11 to 20 of about 117,803 (257)

Local magnitude, duration magnitude and seismic moment of Dahshour 1992 earthquakes

open access: yesAnnals of Geophysics, 2000
Local magnitudes ML have been calculated for 56 earthquakes of the Dahshour 1992 sequence using simulated records of the KEG broadband station and the estimated calibration function of the Dahshour area.
M. F. Abdelwahed   +3 more
doaj   +3 more sources

A theoretical basis of the moment magnitude scale

open access: yesEarth, Planets and Space
To measure the size of an earthquake, we can use two physically different quantities: the radiated seismic energy $$E_{{\text{R}}}$$ E R , from which seismic magnitude scales are defined, and the seismic moment $$M_{0}$$ M 0 .
Mitsuhiro Matsu’ura
doaj   +2 more sources

Automatic computation of moment magnitudes for small earthquakes and the scaling of local to moment magnitude [PDF]

open access: yesGeophysical Journal International, 2010
ISSN:0956 ...
Edwards, Benjamin   +3 more
openaire   +3 more sources

A Method to Determine Moment Magnitudes of Large Earthquakes Based on the Long‐Period Coda

open access: yesGeophysical Research Letters, 2022
We present a novel and robust method for estimating moment magnitudes (Mw) of large earthquakes with long‐period and long‐lasting coda energy. Fitting the energy with a simple decay model, we derive a straightforward relationship between the coda energy ...
Xinyu Jiang, Xiaodong Song
doaj   +1 more source

AIDA – Seismic data acquisition, processing, storage and distribution at the National Earthquake Center, INGV

open access: yesAnnals of Geophysics, 2012
On May 4, 2012, a new system, known as the AIDA (Advanced Information and Data Acquisition) system for seismology, became operational as the primary tool to monitor, analyze, store and distribute seismograms from the Italian National Seismic Network ...
Salvatore Mazza   +10 more
doaj   +1 more source

Moment magnitude estimates for central Anatolian earthquakes using coda waves [PDF]

open access: yesSolid Earth, 2019
A proper estimate of moment magnitude, which is a physical measure of the energy released at an earthquake source, is essential for better seismic hazard assessments in tectonically active regions.
T. Eken
doaj   +1 more source

Parameterising Maximum Tsunami Amplitude with Earthquake Moment Magnitude for Trans-Oceanic Tsunamis

open access: yesASM Science Journal, 2022
This study examines a relationship between earthquake size and maximum tsunami amplitude using large earthquakes of M_w> 7.5 that led to trans-Pacific and Indonesian tsunamis. The data were sampled from tide gauges or DART surface buoys for seven Pacific
Tjipto Prastowo   +3 more
doaj   +1 more source

Relationships Among Magnitudes and Seismic Moment of Earthquakes in the Taiwan Region

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2007
The seismic moments (Mo), body-wave magnitudes (mb), and surfacewave magnitudes (Ms) of 201 Taiwan earthquakes with 4.8 ≤_nmb ≤_n6.6 published in the Global CMT catalog from 1976 to 2006 are used to study the correlations among the three source ...
Kou-Cheng Chen   +2 more
doaj   +1 more source

Analysis of dynamic parameters of earthquakes in the Crimean-Black Sea region. Stress drop distribution [PDF]

open access: yesГеосистемы переходных зон
The information on the dynamic parameters (DP) of 261 earthquakes with KP = 5.2–13.1 (KP, earthquake class according to Pustovitenko and Kulchitsky) that occurred from 1990 to 2022 was collected for the Crimean-Black Sea region from various sources ...
Sycheva, Nailya A.
doaj   +1 more source

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