Earthquakes
Eighty percent of the world's earthquakes occur here
What is the circum-Pacific belt?
The most reliable scale for measuring the energy released by an earthquake
What is the Moment magnitude?
The study of the earth
What is Geology?
A volcano that will probably not erupt
What is an extinct volcano?
Harden lava with a surface that either smooth or ropy
What is pahoehoe?
The earthquake zone stretching from southern Europe to Indonesia
What is the Alpine Belt?
The scale used to measure the damage an earthquake
does.
what is the modified Mercalli?
The inner core is__________
What is solid?
Consist of erupted volcanic ash and rock fragments
What is a cinder cone volcano?
Solid particles that are less than 2mm
What is volcanic ash ?
Eighty-five percent of Earthquakes are this type.
What are shallow-focus earthquakes?
Measures the strength of a volcano's eruption
what is the VEI?
The middle of the earth's three main layers
What is the mantle?
formed by explosive eruptions of ash and rock fragments and mild lava flows
What is a composite volcano?
Superheated cloud of gas and small particles that travels as an avalanche
What is pyroclastic flow
The study of earthquakes
What is seismology?
The computer system that stores and processes geographic data
What is the GIS?
The central part of the earth
What is the core?
A volcano that is inactive but could erupt
What is a dormant volcano?
lava in water that forms rounded structures
What is pillow lava?
An instrument used to record the vibrations caused by an earthquake
What is a seismograph?
The most famous scale used to measure the earthquake's strength
What is the Richter Scale?
The boundary line between the crust and the mantle
What is the Moho?
The type of a mountain that forms when molten rock
erupts from a hole in the earth's crust
What is a volcano?
Harden lave that forms rough , jagged rocks with crumbly texture
What is aa?