Historical earthquakes studies in Eastern Siberia: State-of-the-art and plans for future

Radziminovich, Ya. B.; Shchetnikov, Alexander A.

doi:10.1016/j.jseaes.2012.09.017

Cited by 13 publications

(5 citation statements)

References 22 publications

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“…1a). After Lukina (1989) and Radziminovich and Shchetnikov (2013), these historical events were produced by rupture of the western part of the South Tunka Fault or by the Mondy Fault.…”

Section: Tectonic Settingmentioning

confidence: 99%

Cryoturbation versus tectonic deformation along the southern edge of the Tunka Basin (Baikal Rift System), Siberia: New insights from an integrated morphotectonic and stratigraphic study

Arzhannikova

Ritz

Larroque

et al. 2020

Journal of Asian Earth Sciences

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Tunka Basin is a broad, emerging basin situated between the Baikal Lake to the east and the the Hövsgöl Lake to the west. The basin is bounded to the north and to the south by the Tunka and the Khamar-Daban mountain ranges, respectively. The Tunka normal fault, located at the southern foothills of the Tunka mountain range, is the main structure that controlled the development of the Tunka Basin during the Neogene. Paleoearthquake-surface ruptures attest of its present activity; and show that its western and eastern terminations are undergoing a tectonic inversion characterized by left-lateral-reverse deformations. The southern edge of the Tunka Basin is classically interpreted as being tectonically controlled. In this paper, we present the results of a geomorphological and stratigraphic analysis within its southwestern and southeastern parts suggesting that there is no active fault affecting the foothills of the Khamar-Daban mountain range. The different features observed in the Quaternary deposits are interpreted to be the result of periglacial processes induced by alternating episodes of permafrost aggradation and degradation during the Holocene. Our study concludes that the Khamar-Daban Range and the Tunka Basin are uplifting together, and that the Tunka and Mondy faults are the two main triggers of regional earthquakes.

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“…1a). After Lukina (1989) and Radziminovich and Shchetnikov (2013), these historical events were produced by rupture of the western part of the South Tunka Fault or by the Mondy Fault.…”

Section: Tectonic Settingmentioning

confidence: 99%

Cryoturbation versus tectonic deformation along the southern edge of the Tunka Basin (Baikal Rift System), Siberia: New insights from an integrated morphotectonic and stratigraphic study

Arzhannikova

Ritz

Larroque

et al. 2020

Journal of Asian Earth Sciences

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“…Several historical earthquakes occurred in the Tunka‐Sayan area (Chipizubov, ; Kondorskaya & Shebalin, ; Shebalin & Leydecker, ). Nevertheless, as highlighted by Radziminovich and Shchetnikov () and Tatevossian et al (), many problems related to the reliability of data sources led to mistakes in the parametric catalogs. These authors concluded that the parameters of many known earthquakes in the eighteenth to nineteenth centuries in the Baikal region have to be refined.…”

Section: Seismotectonic Settingmentioning

confidence: 99%

“…The macroseismic epicenter of the 2 September 1814 (Gregorian calendar) earthquake would be located at 51.9°N–102.4°E with an estimated magnitude of 6.4 (Shebalin & Leydecker, ). This event is often attributed to a fault inside the Tunka basin (Radziminovich & Shchetnikov, ). However, the uncertainty on the macroseismic location being in the range of several tens of kilometers (Shebalin & Leydecker, ), it cannot be excluded that the eastern Tunka fault may not be the source of the 1814 historical event.…”

Section: Seismotectonic Settingmentioning

confidence: 99%

“…Along the eastern Sayan fault, the most recent event (1) has occurred between 1901 CE (i.e., 49 years before 1950 when referring to calibrated radiocarbon ages) and 660 cal years BP. The date of 1901 corresponds to the installation of the first “Irkutsk” seismological station and can be considered as the upper limit of the historical period (Radziminovich & Shchetnikov, ). Therefore, it is possible that the paleoseismic feature characterizing the first event in trench K5 (Chipizubov & Smekalin, , our Figure a) corresponds to the 27 June 1742 historical event.…”

Section: Analyzing the Present‐day Activity Of The Tunka And Sayan Famentioning

confidence: 99%

“…Along the eastern Tunka fault, the most recent event (1) would have occurred between 1901 CE and 740 cal years BP. Although there is no consensus on the precise location of the historical earthquakes in the Tunka region, the recent reappraisal of the 1814 CE earthquake by Radziminovich and Shchetnikov () suggests that this event could be associated to the eastern Tunka fault. Therefore, the paleoseismic observations, notably in trench ZT2 (Chipizubov et al, ; Smekalin, , our Figure 9g), could correspond to the 22 August 1814 historical earthquake.…”

Section: Analyzing the Present‐day Activity Of The Tunka And Sayan Famentioning

confidence: 99%

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Characterizing the Present‐Day Activity of the Tunka and Sayan Faults Within Their Relay Zone (Western Baikal Rift System, Russia)

et al. 2018

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The Sayan and Tunka faults are located at the boundary between the northernmost mountain belt of Central Asia (the Sayan‐Baikal ranges) and the Siberian platform. These prominent crustal structures were involved in the opening of the southern Baikal rift system since the beginning of the Cenozoic and define large‐scale sharp morphotectonic features. Despite low instrumental seismic activity, Late Pleistocene‐Holocene morphotectonic features along the two faults indicate that the faults are active and have the capacity to produce strong earthquakes. A careful mapping of the most recent trace of activity, within the south‐eastern parts of the two faults where they merge within a relay zone, demonstrates that they correspond now to left‐lateral‐reverse faults, suggesting a recent inversion of their vertical component. We also show that the two faults are now structurally connected via a young surface rupture and that no obvious post‐Last Glacial Maximum ruptures are observed along the central part of the Sayan Fault beyond its junction zone with the Tunka fault. This suggests that the left‐lateral strike‐slip deformation is transferred from the eastern Sayan fault to the Tunka fault. A detailed morphotectonic study along the south‐eastern Sayan fault allows estimating a left‐lateral slip rate between 1.3 (min) and 3.9 mm/year (max). Finally, a critical review of Russian paleoseismic data, combined with our paleoseismological investigations, allows us to propose that the mean recurrence time along the two faults is on the order of 4 kyr and that they may have either ruptured together or during seismic clusters.

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November 13, 1898 earthquake in Western Transbaikalia: a “white spot” in seismic history of East Siberia

Radziminovich

2013

J Seismol

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Historical earthquakes studies in Eastern Siberia: State-of-the-art and plans for future

Cited by 13 publications

References 22 publications

Cryoturbation versus tectonic deformation along the southern edge of the Tunka Basin (Baikal Rift System), Siberia: New insights from an integrated morphotectonic and stratigraphic study

Cryoturbation versus tectonic deformation along the southern edge of the Tunka Basin (Baikal Rift System), Siberia: New insights from an integrated morphotectonic and stratigraphic study

Characterizing the Present‐Day Activity of the Tunka and Sayan Faults Within Their Relay Zone (Western Baikal Rift System, Russia)

November 13, 1898 earthquake in Western Transbaikalia: a “white spot” in seismic history of East Siberia

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