Results 21 to 30 of about 216 (161)

Imaging the Western Edge of the Aegean Shear Zone: The South Evia 2022-2023 Seismic Sequence

Seismica, 2023
This report presents the 2022-2023 South Evia island seismic sequence, in the western Aegean sea. An automated workflow, undergoing testing for efficient observatory monitoring in the wake of dense aftershock sequences, was employed to enhance the ...
Christos Evangelidis, Ioannis Fountoulakis   +1 more
doaj   +1 more source

Relocation of the Hypocenter of an Earthquake with the Double Difference Method in the Regional Study Area of Yogyakarta

JURNAL GEOCELEBES, 2023
The relocation of the earthquake hypocentre is necessary in order to determine the position of the earthquake centre with higher accuracy. An accurate hypocentre position is important for earthquake-prone areas mapping, seismicity analysis, and fault zone identification. The double difference algorithm technique using the hypoDD program can be used for
Fani Rohmiasih, Andi Andi, Nugroho Budi Wibowo   +2 more
openaire   +1 more source

Seismic Imaging and Seismicity Analysis in Beijing-Tianjin-Tangshan Region

International Journal of Geophysics, 2011
In this study a new tomographic method is applied to over 43,400 high-quality absolute direct P arrival times and 200,660 relative P arrival times to determine detailed 3D crustal velocity structures as well as the absolute and relative hypocenter ...
Xiangwei Yu, Wenbo Zhang, Yun-tai Chen
doaj   +1 more source

Injection‐Induced Earthquakes on Complex Fault Zones of the Raton Basin Illuminated by Machine‐Learning Phase Picker and Dense Nodal Array

Geophysical Research Letters, 2020
Seismicity in the Raton Basin over the past two decades suggests reactivation of basement faults due to waste‐water injection. In the summer of 2018, 96 short period three‐component nodal instruments were installed in a highly active region of the basin ...
Ruijia Wang, Brandon Schmandt, Miao Zhang, Margaret Glasgow, Eric Kiser, Sarah Rysanek, Ryan Stairs   +6 more
doaj   +1 more source

Analysis of Hypocenter Position of Bengkulu Earthquake on April 15, 2023 Using 2D and 3D Grid Search Method Based on USGS Data

Jurnal Fisika Flux
Earthquakes are natural events that can have serious impacts on human life and the environment. This study aims to improve the accuracy of earthquake hypocenter determination by applying the 2D dan 3D Grid Search method to seismic data recorded by three ...
Firdos Bahar Sidik, Savira Zahrul Khumairo, Farizki Budi Pangestu, Triya Illmi Sakinah, Muhamad Raihan Putra Febrian, Risaldi Fauzan Laksono, Jihan Syafina Nasution   +6 more
doaj   +1 more source

Double-difference earthquake relocation using waveform cross-correlation in Central and East Java, Indonesia

Geoscience Letters, 2023
The Central and East Java region, which is part of the Sunda Arc, has relatively high seismic rates due to the convergence of two major tectonic plates in the Indonesian region; i.e., the Indo-Australian Plate subducting under the Eurasian Plate.
Faiz Muttaqy, Andri Dian Nugraha, Nanang T. Puspito, David P. Sahara, Zulfakriza Zulfakriza, Supriyanto Rohadi, Pepen Supendi   +6 more
doaj   +1 more source

Surface Consistent Seismic Hazard Assessment in the Shillong Plateau, Northeast India: A Probabilistic Approach Using Multiple Source Models and a Logic Tree Framework

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 11, Page 2855-2879, September 2026.
ABSTRACT We perform probabilistic seismic hazard analysis (PSHA) in the Shillong Plateau by clubbing the up‐to‐date earthquake data and seismotectonic properties of the study area. Twenty‐one areal seismic sources are delineated based on the updated earthquake catalog, tectonic, and fault plane solutions.
Mohd Shahabuddin, William Kumar Mohanty, Eleftheria Papadimitriou   +2 more
wiley   +1 more source

Use of Local Seismic Network in Analysis of Volcano-Tectonic (VT) Events Preceding the 2017 Agung Volcano Eruption (Bali, Indonesia)

Frontiers in Earth Science, 2021
This study provides an attempt to analyze the pre-eruptive seismicity events for volcano eruption forecasting. After more than 50 years of slumber, Agung volcano on Bali Island erupted explosively, starting on November 21, 2017. The eruption was preceded
David P. Sahara, Puput P. Rahsetyo, Andri Dian Nugraha, Andri Dian Nugraha, Devy Kamil Syahbana, Sri Widiyantoro, Sri Widiyantoro, Zulfakriza Zulfakriza, Zulfakriza Zulfakriza, Ardianto Ardianto, Aria W. Baskara, Shindy Rosalia, Martanto Martanto, Martanto Martanto, Haunan Afif   +14 more
doaj   +1 more source

Deep Seismic Tremors in the 2025 Santorini Seismo‐Volcanic Crisis Highlight Magmatic Feeding From a Mid‐Crustal Reservoir

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract An intense seismic swarm started on 27 January 2025 in the Santorini‐Amorgos region and lasted for approximately 45 days. A widely observed seismic tremor on 14 February 2025 suggested a volcanic origin for the 2025 Santorini crisis. Here we present an in‐depth combined seismological analysis of the earthquakes and tremors that occurred during
Jean Soubestre, Jannes Münchmeyer, Quentin Higueret, Nikolai M. Shapiro, Florent Brenguier, Anthony Lomax   +5 more
wiley   +1 more source

SUMEDANG EARTHQUAKE RELOCATION PERIOD DECEMBER 31, 2023 – JANUARY 4, 2024 USING DOUBLE DIFFERENCE METHOD

Jurnal Neutrino: Jurnal Fisika dan Aplikasinya
On December 31, 2023, an earthquake occurred in Sumedang with a magnitude of M=4.8. The location of the epicenter is at coordinates 6.85'S and 107.94'E, or precisely on land at a distance of 2 km northeast of the center of Sumedang City, with a ...
Ninda Maftuha, Tati Zera, Mochamad NurFaizi   +2 more
doaj   +1 more source