Results 11 to 20 of about 360 (150)

Seismicity catalogue of the entire Chilean margin (18 to 56° S) from an automated approach [PDF]

Earth System Science Data
In this study we process 5 years of continuous seismic data, from 2017 to 2021, recorded by networks deployed along the Chilean convergent margin of western South America.
M. Riedel-Hornig, C. Sippl, A. Tassara, S. Ruiz, B. Potin, J. Puente   +5 more
doaj   +2 more sources

Precise Earthquake Relocation along the Egiin Davaa fault Hangay Dome, Central Mongolia

Proceedings of the Mongolian Academy of Sciences
This study presents a precise earthquake relocation along the Egiin Davaa fault in the Hangay Dome, Central Mongolia, using the double-difference algorithm (HypoDD). We analysed 289 events from a dense temporary deployment of 72 broadband seismic station
Mungunsuren Dashdondog, Ankhtsetseg Dorjsuren, Odbayar Sereenen   +2 more
doaj   +2 more sources

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   +2 more sources

Deep learning-based earthquake catalog reveals the seismogenic structures of the 2022 MW 6.9 Chihshang earthquake sequence

Terrestrial, Atmospheric and Oceanic Sciences
On 18 September 2022, the MW 6.9 Chihshang earthquake struck the south half of the Longitudinal Valley, Taiwan, and caused severe damage. A precise and rapid report for the distribution of aftershock sequence after a devastating earthquake provides key ...
Wei-Fang Sun, Sheng-Yan Pan, Chun-Ming Huang, Zhuo-Kang Guan, I-Chin Yen, Chun-Wei Ho, Tsung-Chih Chi, Chin-Shang Ku, Bor-Shouh Huang, Ching-Chou Fu, Hao Kuo-Chen   +10 more
doaj   +2 more sources

Characterization and Cross-Sectional Modeling of the Newly Identified Rawup Fault Based on Relocated Hypocenters and Focal Mechanism in South Sulawesi

Indonesian Journal of Applied Physics
This study presents an integrated seismotectonic analysis combining earthquake hypocenter relocation and P-wave polarity–based focal mechanism modeling to investigate the microseismic cluster in the Maros–Pangkep region, South Sulawesi.
Kevin Hanyu Clinton Wulur, Joshua Purba, Ramadhan Priadi   +2 more
doaj   +2 more sources

Deep-learning-based construction of a high-resolution earthquake catalog for the 2023 Jishishan $$M_{\textrm{s}}$$  6.2 earthquake sequence

Scientific Reports
On 18 December 2023, a $$M_{\textrm{s}}$$  6.2 earthquake struck Jishishan, Gansu Province, northwestern China. The resulting aftershock sequence provides an important opportunity to investigate the seismogenic structure and postseismic activity in the ...
Shengxia Zhang, Yanping Niu, Zengping Wen, Fengxue Zhang, Jiemin Wang   +4 more
doaj   +2 more sources

A High-Resolution Aftershock Catalog for the 2014 Ms 6.5 Ludian (China) Earthquake Using Deep Learning Methods

Applied Sciences
A high-resolution catalog for the 2014 Ms 6.5 Ludian aftershocks was constructed based on the deep learning phase-picking model (CERP) and seismic-phase association technology (PALM).
Jun Li, Ming Hao, Zijian Cui
doaj   +2 more sources

Relocation of Earthquakes Hypocenter Using the Double Difference Method in Bali and Its Surrounding Areas

Buletin Fisika
A study on the relocation of earthquake hypocenters using the Double Difference method has been conducted in Bali and its surrounding areas. This research was carried out at the Center for Meteorology, Climatology, and Geophysics Region III Denpasar. The
Devi Irma Putri, I Ketut Sukarasa, Rudy Darsono, Winardi Tjahyo Baskoro, Ni Nyoman Wendri, I Made Satriya Wibawa   +5 more
doaj   +2 more sources

基于波形相似性的单台地震目录校正

Dizhen xuebao, 2022
本文基于波形相似性提出了一种适用于地震序列中单台事件目录校正的方法。以福建仙游地震序列为研究对象，应用双差地震定位（HypoDD）算法对多台事件进行重定位，依据记录波形相似性将仙游地震序列事件划分为161个事件丛集，以多台事件重定位目录为参考，对单台事件目录进行校正。结果表明，本方法能够有效地实现单台事件目录的合理校正，有助于提升地震序列目录的完整性和地震目录的实用性。以HypoDD重定位目录为参考的校正目录可用于地震参数计算。分析校正后的仙游地震序列目录认为 ...
Hongcai Zhang, Shirong Liao, Huiteng Cai, Zhiyong Chen, Yanming Zhang, Lingzhu Huang, Shenghua Wu, Sihui Chen   +7 more
doaj   +1 more source

Analysis of the 2021 Milford, Utah earthquake swarm: Enhanced earthquake catalog and migration patterns

Frontiers in Earth Science, 2023
An earthquake swarm occurred in Spring 2021 in south-central Utah near the town of Milford. The University of Utah Seismograph Stations located 125 earthquakes between March 19 and May 10 with magnitudes ranging from 0.5 to 3.2.
Katherine M. Whidden, Gesa M. Petersen, Maria Mesimeri, Kristine L. Pankow   +3 more
doaj   +1 more source