North American and Japanese Clues to a Giant Earthquake in the
... One winter's night in the year 1700, a mysterious tsunami flooded fields and washed away houses in Japan. It arrived without the warning that a nearby earthquake usually provides. Samurai, merchants, and villagers wrote of the event, but nearly three centuries would pass before geological and dendro ...
... One winter's night in the year 1700, a mysterious tsunami flooded fields and washed away houses in Japan. It arrived without the warning that a nearby earthquake usually provides. Samurai, merchants, and villagers wrote of the event, but nearly three centuries would pass before geological and dendro ...
Types of Seismic Waves
... ___ moment magnitude B. takes into account the fault B scale rupture, the amount of ___ modified Mercalli movement along the fault, and ...
... ___ moment magnitude B. takes into account the fault B scale rupture, the amount of ___ modified Mercalli movement along the fault, and ...
Modelling and Analysis of the Earthquake Zones of British
... grid shows surface trends in a two-dimensional plane, block models show similar trends in the calculated values for assay values or geochemistry. The magnitudes of earthquakes can be calculated in a similar manner to determine their directional trend, known as anisotropy, within the values. Anisotro ...
... grid shows surface trends in a two-dimensional plane, block models show similar trends in the calculated values for assay values or geochemistry. The magnitudes of earthquakes can be calculated in a similar manner to determine their directional trend, known as anisotropy, within the values. Anisotro ...
EARTHQUAKES & VOLCANOES
... shallow, running as deep as 25 km; mechanisms indicate strike-slip motion. Transforms tend to have earthquakes smaller than magnitude 8.5. • The San Andreas fault in California is a nearby example of a transform, separating the Pacific from the North American plate. At transforms the plates mostly s ...
... shallow, running as deep as 25 km; mechanisms indicate strike-slip motion. Transforms tend to have earthquakes smaller than magnitude 8.5. • The San Andreas fault in California is a nearby example of a transform, separating the Pacific from the North American plate. At transforms the plates mostly s ...
Living in an Active Zone
... (geothermal energy) E.g. Iceland • Volcanic rock is a good building stone • Many people cannot afford to Move (LEDCs) E.g. Mount Pinatubo, ...
... (geothermal energy) E.g. Iceland • Volcanic rock is a good building stone • Many people cannot afford to Move (LEDCs) E.g. Mount Pinatubo, ...
5.1 notes What processes change Earth`s crust? Objective: Compare
... Some changes in Earth’s surface occur very suddenly. Some take hundreds, thousands even millions of years to happen. Over time, pressure in Earth’s crust can cause layers to bend, curve, or wrinkle. This is called Folding. Rocks may crack underneath, but the layers stay together. Upward folds are ca ...
... Some changes in Earth’s surface occur very suddenly. Some take hundreds, thousands even millions of years to happen. Over time, pressure in Earth’s crust can cause layers to bend, curve, or wrinkle. This is called Folding. Rocks may crack underneath, but the layers stay together. Upward folds are ca ...
What is the crack in the ocean floor through which magma rises
... They turn into riptides. b. They die out. d. They increase in height. ...
... They turn into riptides. b. They die out. d. They increase in height. ...
Ch. 6.2 Notes
... 1. A ____________________ is an instrument that is used to ________________ and record seismic __________________. a. A seismograph records _________________ by tracing wave-shaped __________ on a paper or by ______________________ the motion into electronic ________________. b. A __________________ ...
... 1. A ____________________ is an instrument that is used to ________________ and record seismic __________________. a. A seismograph records _________________ by tracing wave-shaped __________ on a paper or by ______________________ the motion into electronic ________________. b. A __________________ ...
Quiz 5
... 8. The Earth's density as a whole is approximately 2.8 g/cm3. 9. P-waves travel by compression-expansion. 10. The mantle makes up roughly 80% of the Earth's volume. ...
... 8. The Earth's density as a whole is approximately 2.8 g/cm3. 9. P-waves travel by compression-expansion. 10. The mantle makes up roughly 80% of the Earth's volume. ...
Earthquake and Volcano presentation
... the P and S waves in a seismogram. After a seismogram "feels" an earthquake, scientists compare the time difference of these waves to figure out how far away the earthquake is. It takes at least three seismograms to locate exactly where the earthquake is. One seismograph can only tell how far away i ...
... the P and S waves in a seismogram. After a seismogram "feels" an earthquake, scientists compare the time difference of these waves to figure out how far away the earthquake is. It takes at least three seismograms to locate exactly where the earthquake is. One seismograph can only tell how far away i ...
Chapter 5: Earthquakes and Volcanoes
... When two plates collide and the heavier plate sinks below the lighter plate causing it to melt which forms a chamber of magma. Occurs when an oceanic plate collides with a ...
... When two plates collide and the heavier plate sinks below the lighter plate causing it to melt which forms a chamber of magma. Occurs when an oceanic plate collides with a ...
EQT Study Guide
... compression and the hanging wall is moved upward. 20. A fault that results from opposing forces cause rock to break and move horizontally is a ____________ - ___________ fault. 21. Identify the three faults shown below as a normal, strike-slip, or reverse. X __________________ Y__________________ Z ...
... compression and the hanging wall is moved upward. 20. A fault that results from opposing forces cause rock to break and move horizontally is a ____________ - ___________ fault. 21. Identify the three faults shown below as a normal, strike-slip, or reverse. X __________________ Y__________________ Z ...
Unit 3 Dynamic Earth
... The broken sections of the crust are referred to as plates (tectonic). These plates fit together along Earth’s surface like a puzzle. The plates move along the surface very slowly. The upper part of the mantle acts like a plastic and is called the asthenosphere. It allows the plates to move. ...
... The broken sections of the crust are referred to as plates (tectonic). These plates fit together along Earth’s surface like a puzzle. The plates move along the surface very slowly. The upper part of the mantle acts like a plastic and is called the asthenosphere. It allows the plates to move. ...
Final Rev Guide Earthqk Volcanoes Plate Tect
... The energy that causes plates to move is the Earth’s ____________________ The “Ring of Fire” is found around the ___________________ ...
... The energy that causes plates to move is the Earth’s ____________________ The “Ring of Fire” is found around the ___________________ ...
Waves_Seismograms
... 7.0 has 10 X 10 = 100 times greater magnitude 7.0 has 30 X 30 = 900 times more energy! Compared to a 1.0 quake, a 7.0 has: 10 X 10 X 10 X 10 X 10 X 10 = 1 000 000 greater strength ...
... 7.0 has 10 X 10 = 100 times greater magnitude 7.0 has 30 X 30 = 900 times more energy! Compared to a 1.0 quake, a 7.0 has: 10 X 10 X 10 X 10 X 10 X 10 = 1 000 000 greater strength ...
Major 7.2 Earthquake off the West Coast of Northern Sumatra
... As determined by the US Geological Survey National Earthquake Information Center (NEIC), a major earthquake occurred Saturday night Pacific Daylight Time 215 km (130 miles) south-southeast of Banda Aceh, Sumatra, Indonesia. The epicenter of the earthquake is indicated by the red star on plate-tecton ...
... As determined by the US Geological Survey National Earthquake Information Center (NEIC), a major earthquake occurred Saturday night Pacific Daylight Time 215 km (130 miles) south-southeast of Banda Aceh, Sumatra, Indonesia. The epicenter of the earthquake is indicated by the red star on plate-tecton ...
Earthquake
... amount of energy released by an earthquake; Richter scale Moment magnitude – more objective measure of energy released by a major earthquake • uses rock strength, surface area of fault rupture, and amount of movement ...
... amount of energy released by an earthquake; Richter scale Moment magnitude – more objective measure of energy released by a major earthquake • uses rock strength, surface area of fault rupture, and amount of movement ...
Where exactly is the Marikina Valley Fault Line?
... In geology, a fault is a planar fracture or discontinuity in a volume of rock, across which there has been significant displacement. Large faults within the Earth's crust result from the action of tectonic forces. Energy release associated with rapid movement on active faults is the cause of most ea ...
... In geology, a fault is a planar fracture or discontinuity in a volume of rock, across which there has been significant displacement. Large faults within the Earth's crust result from the action of tectonic forces. Energy release associated with rapid movement on active faults is the cause of most ea ...
Planet Earth/Atmosphere Name Learning Targets Period _____
... Vocabulary: crust lithosphere fault epicenter Magnitude scale Stratosphere troposphere thermosphere ...
... Vocabulary: crust lithosphere fault epicenter Magnitude scale Stratosphere troposphere thermosphere ...
Earthquakes, Google Earth and Haiti
... earthquake will be examined. The time slider tool makes it possible to look at satellite imagery of Haiti from months before the earthquake. Students will see crisp edges of buildings and infrastructure on the historical imagery (from December 2009 or thereabouts). Then students can compare the imag ...
... earthquake will be examined. The time slider tool makes it possible to look at satellite imagery of Haiti from months before the earthquake. Students will see crisp edges of buildings and infrastructure on the historical imagery (from December 2009 or thereabouts). Then students can compare the imag ...
MT 9: CaLIFORNIA gEOLOGY
... So what is the unique landscape of California? • Very tall and large mountain range called the ...
... So what is the unique landscape of California? • Very tall and large mountain range called the ...
Plate Tectonics Unit Test
... 8. At the boundary between where a continental plate and an oceanic plate collide, what generally happens? a. The oceanic plate is forced down under the continental plate. ...
... 8. At the boundary between where a continental plate and an oceanic plate collide, what generally happens? a. The oceanic plate is forced down under the continental plate. ...
RapidProcessesPPT
... of a chain of volcanoes that formed in the middle of the Pacific Ocean. Volcanoes can create new land when they erupt, as well as destroy the land around it. (both constructive and destructive) ...
... of a chain of volcanoes that formed in the middle of the Pacific Ocean. Volcanoes can create new land when they erupt, as well as destroy the land around it. (both constructive and destructive) ...
Earthquake
An earthquake (also known as a quake, tremor or temblor) is the perceptible shaking of the surface of the Earth, which can be violent enough to destroy major buildings and kill thousands of people. The severity of the shaking can range from barely felt to violent enough to toss people around. Earthquakes have destroyed whole cities. They result from the sudden release of energy in the Earth's crust that creates seismic waves. The seismicity, seismism or seismic activity of an area refers to the frequency, type and size of earthquakes experienced over a period of time.Earthquakes are measured using observations from seismometers. The moment magnitude is the most common scale on which earthquakes larger than approximately 5 are reported for the entire globe. The more numerous earthquakes smaller than magnitude 5 reported by national seismological observatories are measured mostly on the local magnitude scale, also referred to as the Richter magnitude scale. These two scales are numerically similar over their range of validity. Magnitude 3 or lower earthquakes are mostly almost imperceptible or weak and magnitude 7 and over potentially cause serious damage over larger areas, depending on their depth. The largest earthquakes in historic times have been of magnitude slightly over 9, although there is no limit to the possible magnitude. The most recent large earthquake of magnitude 9.0 or larger was a 9.0 magnitude earthquake in Japan in 2011 (as of March 2014), and it was the largest Japanese earthquake since records began. Intensity of shaking is measured on the modified Mercalli scale. The shallower an earthquake, the more damage to structures it causes, all else being equal.At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. When the epicenter of a large earthquake is located offshore, the seabed may be displaced sufficiently to cause a tsunami. Earthquakes can also trigger landslides, and occasionally volcanic activity.In its most general sense, the word earthquake is used to describe any seismic event — whether natural or caused by humans — that generates seismic waves. Earthquakes are caused mostly by rupture of geological faults, but also by other events such as volcanic activity, landslides, mine blasts, and nuclear tests. An earthquake's point of initial rupture is called its focus or hypocenter. The epicenter is the point at ground level directly above the hypocenter.