Results 1 to 10 of about 345,187 (119)

Earthquake focal mechanisms with distributed acoustic sensing [PDF]

open access: yesNature Communications, 2023
Earthquake focal mechanisms provide critical in-situ insights about the subsurface faulting geometry and stress state.
Jiaxuan Li   +3 more
doaj   +2 more sources

The Impact of Fractal Dimension, Stress Tensors, and Earthquake Probabilities on Seismotectonic Characterisation in the Red Sea

open access: yesFractal and Fractional, 2023
The frequency–magnitude statistics of 6527 earthquakes with 1.0 ≤ ml ≤ 5.7 and focal depths between 0 and 49 km in the Red Sea region between 1980 and 2021 show that the threshold magnitude, above which most of the Red Sea earthquakes are precisely ...
Sherif M. Ali, Kamal Abdelrahman
doaj   +1 more source

Seismogenic Structure Orientation and Stress Field of the Gargano Promontory (Southern Italy) From Microseismicity Analysis

open access: yesFrontiers in Earth Science, 2021
Historical seismic catalogs report that the Gargano Promontory (southern Italy) was affected in the past by earthquakes with medium to high estimated magnitude.
Simona Miccolis   +5 more
doaj   +1 more source

Recent Seismicity in the Area of the Major, 1908 Messina Straits Earthquake, South Italy

open access: yesFrontiers in Earth Science, 2021
High-quality non-linear hypocenter locations and waveform inversion focal mechanisms of recent, shallow earthquakes of the Messina Straits have allowed us to obtain the following main results: 1) seismicity has occurred below the east-dipping north ...
Giancarlo Neri   +4 more
doaj   +1 more source

Seismicity and the State of Stress in the Dezful Embayment, Zagros Fold and Thrust Belt

open access: yesGeosciences, 2021
This study focuses on determining the orientation and constraining the magnitude of present-day stresses in the Dezful Embayment in Iran’s Zagros Fold and Thrust Belt.
Ali Yaghoubi   +3 more
doaj   +1 more source

Discrimination of Microseismic Events in Coal Mine Using Multifractal Method and Moment Tensor Inversion

open access: yesFractal and Fractional, 2022
Discrimination of various microseismic (MS) events induced by blasting and mining in coal mines is significant for the evaluation and forecasting of rock bursts. In this paper, multifractal and moment tensor inversion methods were used to investigate the
Jiliang Kan   +6 more
doaj   +1 more source

First-Motion Focal Mechanism Solutions for 2015–2019 M ≥ 4.0 Italian Earthquakes

open access: yesFrontiers in Earth Science, 2021
A list of 100 focal mechanism solutions that occurred in Italy between 2015 and 2019 has been compiled for earthquakes with magnitude M ≥ 4.0. We define earthquake parameters for additional 22 seismic events with 3.0 ≤ M < 4.0 for two specific key ...
Maria G. Ciaccio   +43 more
doaj   +1 more source

Analysis of two microearthquake swarms in Southeastern Sicily: evidence for active faults?

open access: yesAnnals of Geophysics, 2001
Two microearthquake swarms occurring in Southeastern Sicily during November 1999 and January 2000 were analysed with respect to their seismotectonic features.
A. Ursino   +4 more
doaj   +1 more source

A study of the properties of the tectonic structure of the Kryvyi Rih city based on statistical analysis of seismicity

open access: yesГеофизический журнал, 2022
The article concerns results of studying two significant seismic events — an explosion (23.09.2020 09:00) and an earthquake (30.09.2020 20:00), which occurred in the area of the city of Kryvyi Rih.
S. V. Shcherbina   +9 more
doaj   +1 more source

Fracture‐Mesh Faulting in the Swarm‐Like 2020 Maacama Sequence Revealed by High‐Precision Earthquake Detection, Location, and Focal Mechanisms

open access: yesGeophysical Research Letters, 2023
In August of 2020, an earthquake sequence initiated within the Maacama fault zone in northern California, raising questions about its relationship with the larger‐scale fault.
David R. Shelly   +2 more
doaj   +1 more source

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