Class Notes (838,455)
Canada (510,888)
Geography (662)
GGR378H5 (17)
Lecture 6

Lecture 6.docx

3 Pages
87 Views
Unlock Document

Department
Geography
Course
GGR378H5
Professor
Barbara Murck
Semester
Summer

Description
Lecture 6 Tsunamis Tsunami Focus on the 2004 Sumatra Tsunami  Tsunami Characteristics  Wave Terminology  Triggering Mechanisms  Sumatra-Andaman Earthquake-Tsunami  Socio-Economic Impacts  Ecological Impacts  Scientific Impacts  Tsunami Monitoring and Early Warning: Planning for the Future Tsunami Characteristics  Wave terminology  Basically the same as any wave terminology  Compare to seismic wave terminology, sound wave terminology, etc.  Wavelength (λ) – 10s to 100s of km  Normal waves = 10s of meters  Periodicity (T, f) – variable (approx. 1 hr)  Velocity (V) – up to 1000 km/hr  Time lag – early warning potential  Pacific Ocean greatest width >17,000 km  Amplitude (A)  Open ocean – long, low swells (1-2 m)  Shoreline – amplification  Importance of shoreline configuration  Draw-down and run-up heights  Shoreline amplification  Importance of shoreline configuration  Draw-down and run-up heights Triggering Mechanisms  Rapid-onset triggering  Vertical displacement of the sea floor:  Submarine volcanic eruption  Underwater landslide  Meteorite impact  Tsunamigenic earthquakes  Mainly in subduction zones  In lakes and closed water bodies: seiche Sumatra-Andaman Earthquake  Dec. 26, 2004 (dawn) M =M9.1  4th largest of past 100 years  10 minutes  >150 aftershocks of M>5.0  India-Burma plate boundary  Subduction zone – Sunda Trench  Indian plate subducting under Burma plate  1200 km of rupture/slip along fault  15 m displacement Socio-Economic Impacts  Social & family disruption  >283,000 deaths  Psychological & health impacts  Structural devastation 
More Less

Related notes for GGR378H5

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit