Spatio-temporal variations of b-value in and around north Pakistan

Khaista Rehman; Asghar Ali; Sajjad Ahmed; Wajid Ali; Aamir Ali; Muhammad Younis Khan

doi:10.1007/s12040-015-0625-2

Spatio-temporal variations of b-value in and around north Pakistan

Khaista Rehman^*, Asghar Ali, Sajjad Ahmed, Wajid Ali, Aamir Ali, Muhammad Younis Khan

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

The seismotectonic structure of north Pakistan has been formed by ongoing collision between the Eurasian and Indian plates. North Pakistan and the adjoining areas experienced many large earthquakes in the past, which resulted in considerable damages and loss of life. A magnitude-homogenous earthquake catalogue for north Pakistan and its surrounding areas for the instrumental period from 1964 to 2007 is used for analysis. We presented seismicity picture of the Hindukush–Pamir–Karakoram (HPK), Kohistan Island Arc (KIA) and Hazara–Kashmir–Himalayas (HKH) using various histograms and time series plots of the dataset. The b-value for each accreted domain is derived separately and investigated through a process of mutual correlation. Our computed temporal variation of b-value in Hazara region shows a significant decrease prior to 2005 Kashmir earthquake.

Original language	English
Pages (from-to)	1445-1456
Number of pages	12
Journal	Journal of Earth System Science
Volume	124
Issue number	7
DOIs	https://doi.org/10.1007/s12040-015-0625-2
Publication status	Published - Oct 2015
Externally published	Yes

Keywords

B-value
Pakistan
Seismicity
Spatio-temporal distribution

ASJC Scopus subject areas

General Earth and Planetary Sciences

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10.1007/s12040-015-0625-2

Cite this

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title = "Spatio-temporal variations of b-value in and around north Pakistan",

abstract = "The seismotectonic structure of north Pakistan has been formed by ongoing collision between the Eurasian and Indian plates. North Pakistan and the adjoining areas experienced many large earthquakes in the past, which resulted in considerable damages and loss of life. A magnitude-homogenous earthquake catalogue for north Pakistan and its surrounding areas for the instrumental period from 1964 to 2007 is used for analysis. We presented seismicity picture of the Hindukush–Pamir–Karakoram (HPK), Kohistan Island Arc (KIA) and Hazara–Kashmir–Himalayas (HKH) using various histograms and time series plots of the dataset. The b-value for each accreted domain is derived separately and investigated through a process of mutual correlation. Our computed temporal variation of b-value in Hazara region shows a significant decrease prior to 2005 Kashmir earthquake.",

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AU - Rehman, Khaista

AU - Ali, Asghar

AU - Ahmed, Sajjad

AU - Ali, Wajid

AU - Ali, Aamir

AU - Khan, Muhammad Younis

N1 - Publisher Copyright: © Indian Academy of Sciences.

PY - 2015/10

Y1 - 2015/10

N2 - The seismotectonic structure of north Pakistan has been formed by ongoing collision between the Eurasian and Indian plates. North Pakistan and the adjoining areas experienced many large earthquakes in the past, which resulted in considerable damages and loss of life. A magnitude-homogenous earthquake catalogue for north Pakistan and its surrounding areas for the instrumental period from 1964 to 2007 is used for analysis. We presented seismicity picture of the Hindukush–Pamir–Karakoram (HPK), Kohistan Island Arc (KIA) and Hazara–Kashmir–Himalayas (HKH) using various histograms and time series plots of the dataset. The b-value for each accreted domain is derived separately and investigated through a process of mutual correlation. Our computed temporal variation of b-value in Hazara region shows a significant decrease prior to 2005 Kashmir earthquake.

AB - The seismotectonic structure of north Pakistan has been formed by ongoing collision between the Eurasian and Indian plates. North Pakistan and the adjoining areas experienced many large earthquakes in the past, which resulted in considerable damages and loss of life. A magnitude-homogenous earthquake catalogue for north Pakistan and its surrounding areas for the instrumental period from 1964 to 2007 is used for analysis. We presented seismicity picture of the Hindukush–Pamir–Karakoram (HPK), Kohistan Island Arc (KIA) and Hazara–Kashmir–Himalayas (HKH) using various histograms and time series plots of the dataset. The b-value for each accreted domain is derived separately and investigated through a process of mutual correlation. Our computed temporal variation of b-value in Hazara region shows a significant decrease prior to 2005 Kashmir earthquake.

KW - B-value

KW - Pakistan

KW - Seismicity

KW - Spatio-temporal distribution

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Spatio-temporal variations of b-value in and around north Pakistan

Abstract

Keywords

ASJC Scopus subject areas

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