Open AccessStreamflow changes following the 2010 Chile earthquake
Author(s) -
Balcerak Ernie
Publication year - 2012
Publication title -
eos, transactions american geophysical union
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.316
H-Index - 86
eISSN - 2324-9250
pISSN - 0096-3941
DOI - 10.1029/2012eo340010
Subject(s) - streamflow , quake (natural phenomenon) , stream flow , geology , magnitude (astronomy) , flow (mathematics) , hydrology (agriculture) , streams , groundwater , environmental science , geography , drainage basin , seismology , geotechnical engineering , cartography , mathematics , computer network , geometry , computer science , physics , astronomy
Changes in stream‐flow and groundwater levels are known to occur following earthquakes, but the mechanisms for stream‐flow changes are not fully understood and vary from one location to another. Mohr et al investigated stream‐flow response in small upland catchments in south central Chile following the magnitude 8.8 Chilean earthquake on 27 February 2010. Stream‐flow initially decreased after the quake, then increased to as much as 400% of pre‐earthquake levels. The increases peaked hours to several days following the earthquake, after which flow gradually declined, though changes were not uniform across all the catchments the authors studied.