Visualization of the fault slip connected with the West Bohemia earthquake swarms

Title:

Visualization of the fault slip connected with the West Bohemia earthquake swarms

Creator:

Kolář, Petr, Růžek, Bohuslav, Boušková, Alena, and Horálek, Josef

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:e63f6446-6cef-490d-8ed5-f28ff3b065b0
uuid:e63f6446-6cef-490d-8ed5-f28ff3b065b0
issn:1214-9705

Subject:

Geologie. Meteorologie. Klimatologie, zemětřesení, earthquake, Čechy západní (Česko), asperity, West Bohemia earthquake swarm, fault slip, fault dynamics, 7, and 551

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

The West Bohemia earthquake swarm foci are approximated by a circular seismic source model, which radius is assumed to depend only on magnitude of the event. We consider two different models of average slip (i) a constant slip and (ii) a slip exponentially scaled to the magnitude of the event. Based on these assumptions, we stacked the contributions of individual events into representative final fault slip. We processed in such a way four significant swarms recorded during the last three decades in 1986, 1997, 2000 and 2008. Constant slip model indicates final slip was composed of 2 or 3 principal asperities located on one or two different planes. On the contrary, scaled slip model indicates that one big asperity prevails. It is not possible yet to select the preferred slip model. Analysis of the temporal activity of all swarms generally shows three principal phases: starting phase, main phase and fading phase; the upwards trend of activity spreading was observed (slip animation is presented in www supplement http://www.ig.cas.cz/kolar/StopPhase/Asperity). The maximal possible cumulative slip value may have reached the order of meters., Petr Kolář, Bohuslav Růžek, Alena Boušková and Josef Horálek., and Obsahuje bibliografii

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Acta geodynamica et geomaterialia : | 2011 Volume:8 | Number:2 (162)

Harvested from:

CDK

Metadata only:

false