The structural position of earthquakes relative to elements of deep-seated fault tectonics and their interpretation for the Magadan shelf of the Sea of Okhotsk

Vashchilov, Yu. Ya.; Kalinina, L. Yu.

doi:10.1134/s0742046309060049

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“…Thus, it appears that in the southern area (with continental-oceanic crust), as well as in the Magadan offshore area [Vashchilov and Kalinina, 2009], the earthquakes of energy class К ≥ 12, hence, the highest earthquake energy, occur in areas with lower density of faults that have surface expression.…”

Section: Fault Density and Earthquakes In The Sredne Yam Skoi Seismicmentioning

confidence: 97%

Fault density, earthquakes, and the topography of crustal stratification interfaces: Central Magadan Oblast

Gaidai

Kalinina

2011

J. Volcanolog. Seismol.

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This study is concerned with quantitative estimation of the relationship between earthquakes and tectonic crustal fragmentation based on a correlation analysis of fault density with seismicity parameters (the number and energy of earthquakes per unit area) for the Sredne Yamskoi seismic junction and adjacent area. The highest level of seismic activity and the highest probability of earthquake occurrence with energy classes K ≥ 12 within areas that have a continental crust with a well pronounced granite layer occur in those areas with the mean fault density. Within areas with a thinner granite layer in the crust, the most likely seismic events are K ≥ 12 earthquakes that occur in areas with lower fault density. We estimated the relationship between the degree of crustal fragmentation and the topography of stratification interfaces in the crust as identified by new interpretative gravimetry. Zones with the lowest degree of fragmentation tend to be areas where the top of the crystalline basement lies deeper.

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Section: Fault Density and Earthquakes In The Sredne Yam Skoi Seismicmentioning

confidence: 97%

Fault density, earthquakes, and the topography of crustal stratification interfaces: Central Magadan Oblast

Gaidai

Kalinina

2011

J. Volcanolog. Seismol.

Self Cite

View full text Add to dashboard Cite

show abstract

The structural position of earthquakes relative to elements of deep-seated fault tectonics and their interpretation for the Magadan shelf of the Sea of Okhotsk

Cited by 1 publication

References 1 publication

Fault density, earthquakes, and the topography of crustal stratification interfaces: Central Magadan Oblast

Fault density, earthquakes, and the topography of crustal stratification interfaces: Central Magadan Oblast

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