Download DVD Notes for NOVA “Deadliest Earthquakes: Haiti

DVD Notes for NOVA “Deadliest Earthquakes: Haiti and Chile”
2010 Haiti earthquake
4:53 p.m. January 12, 2010
7.0Mw
Port-au-Prince
rubble
233,000 dead
inevitable
rapid response
assess risk
GPS [Global Positioning System]
benchmark
creeping
30 centimeters
crust
plates
plate tectonics
internal heat [from radioactive decay]
Caribbean plate
North American plate
stress  strain
seismologist
logarithmic scale
cannot predict
fault
released energy
California
San Andreas fault
[810] miles
[right lateral] strike-slip
grind past horizontally
“Big One”
L.A. region
1994 Northridge earthquake
4:31 a.m. January 17, 1994
6.7Mw
worst case scenario
buildings down
no water
forecasting
Anza-Borrego State Park
drilling
San Jacinto fault
800 feet down
borehole
ALWAYS precedes [= precursor]
2010 Chilean earthquake
3:34 a.m. February 27, 2010
8.8Mw
5th largest
accelerates Earth’s rotation
Isla Santa Maria
South American plate
Nazca plate
epicenter
in situ [= in place]
coastline lifted up
subducting
megathrusts
tsunamis
2004 Indian Ocean [Sumatra-Andaman] earthquake and tsunami
December 26, 2004
9.3Mw
high water mark
Cascadia fault
core samples
deposition
silent earthquake
noise vs. signal [signal-to-noise ratio]
slow slip
warning
triggered earthquakes
2010 Baja California [Sierra El Mayor, El Mayor-Cucapah] earthquake
3:40 p.m. April 4, 2010
7.2Mw
clustering?
a few seconds
UC Berkeley
Hayward fault
splits [California Memorial] stadium
Shake Alert
primary or P-waves
s-waves
surface waves
California [Integrated Seismic] Network
Japan
engineering
shake tables
building codes [first earthquake related code was the Field Act of 1933 in California]
tsunami vertical evacuation refuge