lesson 5.1 Flashcards
The Earth is classified into two distinct zones
Asthenosphere
lithosphere
Is hotter and more easily deformed.
asthenosphere
Is composed of large blocks referred to as
tectonic plates.
lithosphere
He came up with the theory of
continental drift
alfred wegener
He suggested the ocean floors can be viewed as giant conveyor belts
His work was formalize in his theory of seafloor spreading.
harry hess
Harry Hess Calculated the speed at which the continents was spreading at the
Mid-Atlantic Ridge to be approximately
————- per year.
2.5 cm
Now using advanced technology like the GPS, (Global positioning
system), it has been determined that the plates are actually moving up
to ———- per year.
11 cm
Are any fault that is likely to
generate another earthquake
sometime in the future
active fault
Common consideration, is if a
fault has moved one or several
times in the last 10,000 years
active fault
are areas where the tectonic plates converge
subduction zone
causes a tectonic plate to slide under another plate and sink into the mantle because the denser oceanic crust slides beneath the lighter continental crust.
subduction
results in volcanic activities, earthquakes, and tsunamis.
subduction
If the plates that collide are made of the same material, they both crumple together, which results in the formation of ——-
mountains
was a result from the collision
of Indian Plate and Eurasian Plates
himalayas
The Philippine is situated close to the —– created by the boundary between the ————–.
subduction zone,
philippine plate and eurasian plate
(JICA)
japan international cooperation agency
(MMDA)
metropolitan metro manila development authority
(PHIVOLCS)
Philippine Institute of Volcanology and Seismology
when the fault moves and generate a 7.2-
magnitude earthquake,
the chaotic scenario
will cause 34,000 deaths, 600,000 cases of
injury and 500 incidents of fire
simultaneously in Metro Manila. This is now
termed
The big one
(MMEIRS)
the Metro Manila Earthquake Impact Reduction Study
The objectives of the study, called the Metro Manila Earthquake Impact Reduction Study (MMEIRS), was to:
Evaluate seismic hazards, damages, and vulnerability of Metro Manila
Prepare framework of master plans for earthquake disaster management.
The Philippine government conducted the Risk Analysis
for a Ready, Safe and Resilient Greater Metro Manila
Area, with the results released in May 2015. This was
a joint undertaking with the
Australian government
through Australian Aid and Geoscience Australia.
(GMMA)
Greater Metro Manila Area
(LIDAR)
light detection and ranging
was used to measure the profile of the landform.
light detection and ranging (LIDAR)
(DEM)
Digital Elevation Model
where building types and density, population density, land use, and the complex mix of age and type of buildings where shown. The result of the study was used to analyze the risk and the effects of hazards.
digital evaluation model (DEM)
The most susceptible areas were identified to be in the mountainous regions in the ————————————– due to steep topography and presence of informal settlers.
east and the areas along the West Valley Fault
