Holocene slip rates and their implications for seismic hazard along the Himalayan Frontal Thrust in western Himalayan Nahan salient

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F23%3A00576013" target="_blank" >RIV/67985530:_____/23:00576013 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/10.1111/ter.12657" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1111/ter.12657</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/ter.12657" target="_blank" >10.1111/ter.12657</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Holocene slip rates and their implications for seismic hazard along the Himalayan Frontal Thrust in western Himalayan Nahan salient

Popis výsledku v původním jazyce

Protracted interseismic locking of the low-angle decollement of the Himalaya causes strain accumulation and results in growing slip deficit with time. Unlocking the frontal splay of the decollement during high-magnitude earthquakes (Mw >= 6.5) may cause surface ruptures along the Himalayan Frontal Thrust (HFT). According to Paleoseismic investigations and observations on undeformed fluvial strath surfaces, the HFT in Nahan Salient has not experienced coseismic slip at least for the last six to seven centuries. Our new observations and chronological assessments on folded and faulted fluvial strath surfaces on the hanging wall of the HFT indicates a maximum slip rate of 10.4 +/- 0.8-12.2 +/- 0.8 mm/a (averaged over the last 7-8 ka). Seismic quiescence of 600-700 a results in a similar to 6.2-8.5 m slip deficit on the HFT which could trigger a Mw >= 7.7 earthquake. Our findings underline an enormous seismic risk prevailing in the Nahan area.

Název v anglickém jazyce

Holocene slip rates and their implications for seismic hazard along the Himalayan Frontal Thrust in western Himalayan Nahan salient

Popis výsledku anglicky

Protracted interseismic locking of the low-angle decollement of the Himalaya causes strain accumulation and results in growing slip deficit with time. Unlocking the frontal splay of the decollement during high-magnitude earthquakes (Mw >= 6.5) may cause surface ruptures along the Himalayan Frontal Thrust (HFT). According to Paleoseismic investigations and observations on undeformed fluvial strath surfaces, the HFT in Nahan Salient has not experienced coseismic slip at least for the last six to seven centuries. Our new observations and chronological assessments on folded and faulted fluvial strath surfaces on the hanging wall of the HFT indicates a maximum slip rate of 10.4 +/- 0.8-12.2 +/- 0.8 mm/a (averaged over the last 7-8 ka). Seismic quiescence of 600-700 a results in a similar to 6.2-8.5 m slip deficit on the HFT which could trigger a Mw >= 7.7 earthquake. Our findings underline an enormous seismic risk prevailing in the Nahan area.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Terra Nova

ISSN

0954-4879

e-ISSN

1365-3121

Svazek periodika

35

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

370-378

Kód UT WoS článku

000986859100001

EID výsledku v databázi Scopus

2-s2.0-85159044632