Afghanistan earthquake 2015 aftershocks analysis for a better understanding of the seismicity behavior for future assessment

Khalil, Umer; Aslam, Bilal; Maqsoom, Ahsen

doi:10.1007/s11600-021-00624-3

Artykuł - szczegóły

Tytuł artykułu

Afghanistan earthquake 2015 aftershocks analysis for a better understanding of the seismicity behavior for future assessment

Autorzy

Khalil Umer , Aslam Bilal , Maqsoom Ahsen

Wybrane pełne teksty z tego czasopisma

https://www.springer.com/journal/11600

Identyfikatory

DOI

10.1007/s11600-021-00624-3

Warianty tytułu

Języki publikacji

Abstrakty

Afghanistan has been subjected to many disastrous earthquakes in the past as it is situated in a seismically vigorous region. The converging edge of the Arabian, Indian, and Eurasian plates accounts for the high seismicity of the region. An Mw 7.5 earthquake hit northern areas of Afghanistan along with Pakistan on the October 26, 2015, with its epicenter positioned in the Hindu Kush (HK) region of Afghanistan at 45 km southwest of Jarm. Resulting in 115 deaths and impairment to 7679 buildings, the earthquake was of an intermediate depth (210 km), which was instigated from reverse faulting. In the current investigation, we investigated the instrumental earthquake data acquired from the multiple data sources for the period of ugust 4, 2015 to March 27, 2016 and from the main earthquake catalog; the aftershocks were classifed by exploiting Reasenberg’s algorithm. Numerous histograms of time, the hour of the day, depth, and magnitude have been formulated for explaining the disparity of aftershocks. The foremost inconsistency happens within the 3 days after a mainshock of the HK 2015 earthquake, as disclosed by the outcomes. The Gutenberg-Richter law was exploited to analyze the size dissemination of aftershocks, and the observed value of b is 1.02+/−0.06. In and around the epicenter of the HK 2015 earthquake, for the depiction of the decay proportions of aftershock sequences, Omori-Utsu law was exercised. The “p value,” which is the decay component, is computed to be 1.46+/−0.08.

Słowa kluczowe

seismicity Afghanistan aftershock analysis Gutenberg-Richter law Omori’s law

sejsmiczność Afganistan analiza wstrząsów wtórnych prawo Gutenberga-Richtera prawo Omoriego

Wydawca

Instytut Geofizyki PAN
Springer

Czasopismo

Acta Geophysica

Rocznik

2021

Tom

Vol. 69, no. 4

Strony

1189--1197

Opis fizyczny

Bibliogr. 59 poz.

Twórcy

autor

Khalil Umer

umerkhalil745@gmail.com

Department of Civil Engineering, COMSATS University Islamabad, Wah Campus, Wah, Pakistan

autor

Aslam Bilal

bilalaslam45@gmail.com

Department of Cyber Security and Data Science, Riphah International University, Islamabad, Pakistan

https://orcid.org/0000-0001-7308-5285

autor

Maqsoom Ahsen

ahsen.maqsoom@ciitwah.edu.pk

Department of Civil Engineering, COMSATS University Islamabad, Wah Campus, Wah, Pakistan

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Typ dokumentu

Bibliografia

Identyfikator YADDA

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