‘The Santa Clara Valley Water District has received preliminary findings from an ongoing seismic stability evaluation for Anderson Dam that detail part of the dam could experience “significant slumping” if a 7.25 magnitude earthquake were to occur on the Calaveras Fault within about a mile of the dam.’ [Source: MorganHillTimes.com via Association of State Dam Safety Officials]
Geologic Hazards
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There are two issues here :
(1) Why this prophecy now, what credible seismic event/EQ was considered while designing the project layout, if presence of Calaveras Fault in vicinity as close as ~1.6km was known?
(2) Now with this info, what stabilisation strategy is being adopted/conceived to tackle this scenario?
thnks