Groundwater level variations in the seismically active region of Western Bohemia in the years 2005-2010

Title:

Groundwater level variations in the seismically active region of Western Bohemia in the years 2005-2010

Creator:

Gaždová, Renata, Oldřich Novotný, Málek, Jiří, Valenta, Jan, Brož, Milan, and Kolínský, Petr

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:b095dfaf-555f-47b8-aab3-f68bd1e2c422
uuid:b095dfaf-555f-47b8-aab3-f68bd1e2c422
issn:1214-9705

Subject:

Geologie. Meteorologie. Klimatologie, zemětřesení, seizmicita, earthquake, seismicity, Čechy západní (Česko), Bohemia, Western (Czechia), earthquake swarm, groundwater level, 7, and 551

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

The western part of the Bohemian Massif (Vogtland/West-Bohemia region at the Czech-German border) is characterized by relatively frequent intraplate earthquake swarms and by other manifestations of current geodynamic activity, such as mofettes, mineral and thermal springs. In this study we analyze variations of groundwater level in four hydrological wells in the region during the years 2005-2010. Monitoring during the previous time interval of 2000-2004 is also mentioned and used for comparison. Two of the wells are located in the epicentral region of Nový Kostel, and the other wells are more distant. The time interval includes the 2008 earthquake swarm when all the wells displayed a noticeable drop in the water level. This effect was observed up to epicentral distances of nearly 30 km, which exceeds the distances of hydrological changes observed during previous earthquake swarms. Moreover, it seems that a small rise in the water level preceded the intervals of increased seismic activity, which could represent a certain precursory phenomenon. On the other hand, the hydrological changes in the Nový Kostel area were relatively small, indicating that this epicentral area is not hydrologically linked with the seismically active fault at depth. Consequently, more suitable localities for hydrological monitoring should be sought in a broader vicinity of Nový Kostel., Renata Gaždová, Oldřich Novotný, Jiří Málek, Jan Valenta, Milan Brož and Petr Kolínský., 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:1 (161)

Harvested from:

CDK

Metadata only:

false