EARTHQUAKE EPICENTERS AND FORMATION OF LAND FORMS Flashcards
Occur when rocks in the lithosphere move or rupture in order to release accumulated energy and stress.
Earthquake
Are breaks in the Earth’s crust where rocks move or slide past one another.
Fault
Directly above the hypocenter
Epicenter
The surface where the slip occurs
Fault plane
The location below the Earth’s surface where the earthquake originates
Hypocenter
Measure of the degree of shaking experienced in an area
Intensity
It is a quantitive measurement that relies on the data from seismic records with other techniques to estimate the amount of energy released
Magnitude
What are the faults in the Eastern part of the Philippines?
East Luzon trough and Philippine trench
What are the faults in the western part of the Philippines?
Manila, Negros, Sulu, and Cotabato trench
When did the historical accounts of earthquakes start?
Spanish colonization in the late 15th century
When did the instrumentally derived parameters for earthquakes start?
In 1892
Where are the areas where the 7.0 magnitude earthquake happened
Casiguran Aurora, Ragay gulf, Mindanao, Panay, Nueva, and Ecija
Is a strong rigid layer the uppermost mantle and crust that were broken into several major and minor segments
Plate tectonics theory
Is a strong rigid layer the uppermost mantle and crust that were broken into several major and minor segments
Plate tectonics theory