Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Geography : Risk & Hazard Perception

No description
by

Jessy Frydenberg

on 8 February 2013

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Geography : Risk & Hazard Perception

photo credit Nasa / Goddard Space Flight Center / Reto Stöckli - Armel - Lara - Vicky Earthquakes General Factors Affecting
Perception of Hazards + Poor Decision Making
+ Disability - Personal Circumstances Factors Affecting Individuals Perceptions of Hazard Risk + Preparation for the earthquake

+ Previous experience with earthquakes

+ Ability to exercise control over a hazard

+ Understanding and knowledge of earthquakes prior to these specific disasters

+ Use of technology [for preparation / prediction / building /etc] Methods & Obstacles Methods Used in Case Studies Sendai: How Prepared were the Affected
Communities? Predictions for both earthquakes had little effect on the community's readiness To Conclude
"Just for Fun" Decreases Perception: + Predictions of Hazards
+ Belief in Technology
+ First-hand Experience [with Hazard]
+ Belief in Technology
+ Overestimation / Underestimation
of Hazard Severity
+ Ability to Exercise Control
+ Use of Media (technology)
+ Knowledge & Understanding of a Hazard [in the case studies of Sendai and Loma Prieta] Both: + Preparation for Hazard Increases Perception: Earthquakes - Return / Interval period For Predicting Possible Ways of Forecasting Earthquakes: + Not realized until a few hours or even seconds before the hazard event - Development of warning systems - Erratic animal behaviour - Foreshocks - Changes in Vp/Vs --> the pressure waves passing through the rock at a certain velocity - Seismographs --> keep track of plate movement Jessy - Seismic electro signals (geoelectric) - Radon gas emission measurements Loma Prieta: In the days leading up the earthquake... - Little difference in radon emissions - Dogs at Santa Cruz County Animal shelter, rushed to their kennels whimpering seconds before - Monkeys at the SF zoo were screaming / banging on the glass an hour before - No foreshocks - Unnoticed minor changes in animal behavior - Seismographs measured small foreshocks - Scientists noticed high radon emissions (as they were not officially 'announced' to the communities) Sendai Loma Prieta - Prior experience = much smaller severity than it could have been - 63 deaths in total - About 31,000 deaths - Nowhere near as prepared as CA - About 15,000 buildings damaged (generally only minor damage) - No specific building damage data as the damage was largely severe) Earthquake - Labrinth
Full transcript