Questions and Answers
What type of volcano is Mayon Volcano?
The Sierra Madre is the shortest mountain range in the Philippines.
False
What are the four main layers of the Earth?
Crust, Mantle, Outer core, Inner core
The _________ is a series of mountains arranged in a line connected by high ground.
Signup and view all the answers
Match the following major tectonic plates with their regions:
Signup and view all the answers
What instrument is used to measure and record vibrations within the Earth?
Signup and view all the answers
The epicenter is the point inside the Earth where an earthquake starts.
Signup and view all the answers
What is the term for the movement of the lithosphere?
Signup and view all the answers
Study Notes
Pacific Ring of Fire
- A vast 25,000-mile-long area featuring numerous volcanoes and seismic activity.
- Contains many of the world's most active volcanoes, primarily situated along oceanic boundaries.
Mountains and Volcanoes
- Mountains are land masses that rise significantly higher than hills.
- Mayon Volcano, a stratovolcano, is known for its perfectly conical shape and is located in Albay, Bicol, Philippines.
Mountain Ranges
- Mountain ranges consist of a series of connected mountains arranged in a linear formation.
- Sierra Madre is the longest mountain range in the Philippines, located in the northeastern part of Luzon.
Structure of the Earth
- Comprised of several layers:
- Crust
- Mantle
- Outer Core
- Inner Core
Lithosphere and Plate Tectonics
- The lithosphere consists of the crust and the upper mantle and is in constant, albeit slow, motion.
- Tectonics refers to the movement of the lithosphere, influencing geological phenomena.
- Plate tectonics lead to the division of larger tectonic plates into smaller microplates, each covering less than 380,000 square miles.
- There are approximately 57 tectonic plates on Earth, including major plates like:
- African Plate
- Antarctic Plate
- Eurasian Plate
- North American Plate
- South American Plate
- Indo-Australian Plate
- Pacific Plate
Earthquakes
- Defined as the shaking or trembling of the Earth.
- Epicenter is the point on the Earth's surface directly above the earthquake's focus.
- Focus is the originating point within the Earth where the earthquake starts.
Seismic Measurement
- Seismograph is an instrument used to measure and document earthquakes' vibrations.
- Seismic waves are mechanical waves of acoustic energy generated during an earthquake.
- Seismogram records ground motion resulting from seismic waves.
- Primary waves (P-waves) are the first recorded by a seismograph, followed by secondary waves (S-waves) and surface waves (Love waves or L-waves).
Earthquake Location Methods
- The triangulation method is utilized to pinpoint an earthquake's location.
- Seismometers are represented as green dots, the earthquake location as a circle, and the intersecting points of circles indicate the epicenter location.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge on the Pacific Ring of Fire, the Earth's structural layers, and notable volcanic formations such as Mayon Volcano. This quiz covers fundamental geological concepts and highlights important mountain ranges in the Philippines.
