How technology is used to preserve the park

 Yosemite has lots of earthquake monitors sensing when and how big earthquakes at the park will be.  Also there is yosemite volacano that is bieng monitored.  It has recordedly been growing 3 inches a year.  There has been no reported heavy siesmic activities recently.  Also there has been no reports of earthquakes coming anytime soon.  Yosemite is currently safe from earthquakes and siesmic activitie for a while.