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TitleThermal springs of Gandll K'in Gwaayaay (Hot Spring Island) Gwaii Haanas National Park Reserve
AuthorGrasby, S E; Bartier, P
SourceProcedia Earth and Planetary Science vol. 17, 2017 p. 944-947, (Open Access)
Alt SeriesEarth Sciences Sector, Contribution Series 20160351
Mediapaper; on-line; digital
File formatpdf
ProvinceBritish Columbia; Western offshore region
AreaHot Spring Island
Lat/Long WENS-131.5000 -131.0000 52.7500 52.5000
Subjectsgeothermal surveys; geothermal research; seismicity; flow regimes; deformation; terrain management
ProgramWestern Canada Geohazards Project, Public Safety Geoscience
Released2017 01 18
AbstractThe Gandll K¿in Gwaayaay (Hot Spring Island), British Columbia Canada, geothermal system showed significant response to the October 27 2012 Haida Gwaii earthquake, including temporary flow stoppage. This indicates linkage between the hydrogeological system and seismic activity on the nearby fault. A study was initiated to assess how the spring system has changed in response to the earthquake in 2012, and whether it is it still changing, has it reached a new equilibrium and, if it has, what are the parameters of the new equilibrium. Linkages of the flow regime to seismic moment release and surface deformation measurements near Haida Gwaii were also investigated to assess if there is potential that changes in spring flow and/or chemistry may provide precursor information of near-future seismic activity. Results of this study may be used to inform decisions involving visitation by tourists, management and development of site facilities, and monitoring of the unique ecology at this site.
Summary(Plain Language Summary, not published)
This extended abstract reports on findings of a study on the seismic impact on flow of the Gandll K¿in Gwaayaay thermal spring in Gwaii Haanas National Park Reserve. The supports Parks Canada in assessing the geologic controls on the deep groundwater flow system that forms the spring and how this is impacts by seismic activity.