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| Titel |
Technical NoteEarthquake dates and water level changes in wells in the Eskisehir region, Turkey |
| VerfasserIn |
G. Yuce, D. Ugurluoglu |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 7, no. 5 ; Nr. 7, no. 5, S.777-781 |
| Datensatznummer |
250004796
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| Publikation (Nr.) |
 copernicus.org/hess-7-777-2003.pdf |
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| Zusammenfassung |
| Although satisfactory results have yet to be obtained in earthquake prediction,
one of the most common indicators of an anomalous precursor is a change in groundwater
level in existing wells. Further wells should thus be drilled in unconfined aquifers since
these are more susceptible to seismic waves. The Eskisehir region lies in the transition
zone between the Aegean extensional domain and the compressible northern Anatolian block.
Limnigraphs, installed in 19 exploration wells in the Eskisehir region, recorded
pre-seismic, co-seismic and post-seismic level changes during the earthquakes of 17 August
Izmit (Mw= 7.4) and 12 November Duzce (Mw= 7.2) 1999 that occurred along the
North Anatolian Fault Zone. The Izmit and Duzce earthquakes affected groundwater levels,
especially in confined aquifers. The aquifer characteristics before and after the
earthquakes were unchanged so the aquifer is elastic in its behaviour. Further detailed
geo-mechanical investigation of the confined aquifer in the Eskisehir region may improve
understanding of earthquake prediction.
Keywords: earthquake prediction, Eskisehir, hydrological warning, monitoring
groundwater levels |
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