earthquakes… - White Plains Public Schools
... The MAGNITUDE of an EQ is how much energy is released during the event. INTENSITY describes the perceptible moving, shaking and damage experienced during the event. Two EQ’s can have same magnitude, but very different intensity depending upon such variables as location relative to the epicenter, typ ...
... The MAGNITUDE of an EQ is how much energy is released during the event. INTENSITY describes the perceptible moving, shaking and damage experienced during the event. Two EQ’s can have same magnitude, but very different intensity depending upon such variables as location relative to the epicenter, typ ...
Surface rupture of the 14 Nov 2016 Kaikoura Earthquake .. and more
... • Christchurch has probably had it’s worst-case earthquake: Direct hit on the city in the form of the M6.2 February 2011 Christchurch earthquake • Other major earthquakes are expected to occur at greater distances from the city: Southern Alps foothills and north Canterbury (c.50km distance), and Alp ...
... • Christchurch has probably had it’s worst-case earthquake: Direct hit on the city in the form of the M6.2 February 2011 Christchurch earthquake • Other major earthquakes are expected to occur at greater distances from the city: Southern Alps foothills and north Canterbury (c.50km distance), and Alp ...
Earthquake
... 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 ...
... 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 ...
Earthquakes, Volcanoes and Igneous Activity
... Location of an Epicenter Epicenters are located by using the velocity differences between the P-waves and 9waves. Since P-waves move faster than 9waves, the farther an observer is from an epicenter, the larger the time interval between the arrival of the P-waves and $waves. The distance to the epice ...
... Location of an Epicenter Epicenters are located by using the velocity differences between the P-waves and 9waves. Since P-waves move faster than 9waves, the farther an observer is from an epicenter, the larger the time interval between the arrival of the P-waves and $waves. The distance to the epice ...
No Slide Title
... • Each magnitude is 10 times greater than the previous number. • A magnitude 5 earthquake is 10 times stronger than a magnitude 4 earthquake. A magnitude 6 is 100 times stronger than a magnitude 4. ...
... • Each magnitude is 10 times greater than the previous number. • A magnitude 5 earthquake is 10 times stronger than a magnitude 4 earthquake. A magnitude 6 is 100 times stronger than a magnitude 4. ...
Modelling and Analysis of the Earthquake Zones of British
... the Richter Scale, but went as high as 3.9. Since this date, the Nazko Cone has been a focus of interest by the Geological Survey of Canada. While the clustering of earthquakes can indicate danger zones from the surface, the ability to model them in three dimensions allows us to study the structure ...
... the Richter Scale, but went as high as 3.9. Since this date, the Nazko Cone has been a focus of interest by the Geological Survey of Canada. While the clustering of earthquakes can indicate danger zones from the surface, the ability to model them in three dimensions allows us to study the structure ...
Earthquakes!!!!!
... When the edges get “caught,” great pressure gets exerted on the plate. This pressure translates into potential energy. When the energy becomes too great and the strength of the rock is exceeded, the plate slips or cracks and a rapid release of potential energy (stored in rock) occurs. ...
... When the edges get “caught,” great pressure gets exerted on the plate. This pressure translates into potential energy. When the energy becomes too great and the strength of the rock is exceeded, the plate slips or cracks and a rapid release of potential energy (stored in rock) occurs. ...
? AN EVALUATION OF CHINESE ANNUAL
... The annual predictions are made by consensus of experts from the CAP and provincial seismological bureaux, based on a series of preparatory meetings at provincial level. Various data of seismicity parameters, deformation, apparent resistivity, ground water, ground stress, gravity, magnetic field, et ...
... The annual predictions are made by consensus of experts from the CAP and provincial seismological bureaux, based on a series of preparatory meetings at provincial level. Various data of seismicity parameters, deformation, apparent resistivity, ground water, ground stress, gravity, magnetic field, et ...
Word format
... 16. Three seismograph stations are needed to find the epicenter of an earthquake because: A. the more, the better B. at least one of the stations could have made a mistake C. some instruments cannot measure the P-S time interval D. more than three stations takes too long to process the seismogram da ...
... 16. Three seismograph stations are needed to find the epicenter of an earthquake because: A. the more, the better B. at least one of the stations could have made a mistake C. some instruments cannot measure the P-S time interval D. more than three stations takes too long to process the seismogram da ...
Earthquakes
... boundaries when tectonic plates slide past one another. However, the strongest earthquakes occur at convergent boundaries due to the amount of increased stress on the rock. ...
... boundaries when tectonic plates slide past one another. However, the strongest earthquakes occur at convergent boundaries due to the amount of increased stress on the rock. ...
Natural Hazards and their Mitigation
... This course provides a detailed account of t eh different types of natural hazards, their causes, effects and various possible mitigation measures. The course is divided into: Earthquake hazards Volcanic eruptions Floods 4. Course Objectives The objectives of this course are: To explore the ...
... This course provides a detailed account of t eh different types of natural hazards, their causes, effects and various possible mitigation measures. The course is divided into: Earthquake hazards Volcanic eruptions Floods 4. Course Objectives The objectives of this course are: To explore the ...
Earthquakes in South Carolina
... Based on South Carolina’s geological setting (on a passive tectonic margin with no rift zone or subduction zone nearby), there should not be any major earthquakes here. Minor earthquakes (3 or less on the Richter Scale) are fairly common everywhere and do not indicate any unusual geologic activity. ...
... Based on South Carolina’s geological setting (on a passive tectonic margin with no rift zone or subduction zone nearby), there should not be any major earthquakes here. Minor earthquakes (3 or less on the Richter Scale) are fairly common everywhere and do not indicate any unusual geologic activity. ...
causes for earthquakes
... Violent and explosive volcanoes can cause destructive earthquakes. Minor causes of earthquakes are collapse of underground caves, landslides and man-made causes such as dams which causes a sudden rush of water and disturbs the rocks. ...
... Violent and explosive volcanoes can cause destructive earthquakes. Minor causes of earthquakes are collapse of underground caves, landslides and man-made causes such as dams which causes a sudden rush of water and disturbs the rocks. ...
Earthquakes - Distribution Access
... tension, occurs when one side (hanging wall) drops down from the opposite wall (footwall).A reverse fault, usually caused by compression, occurs when the hanging wall is raised above the footwall.A lateral fault, usually caused by shearing, occurs when the two walls grind against each other.This mov ...
... tension, occurs when one side (hanging wall) drops down from the opposite wall (footwall).A reverse fault, usually caused by compression, occurs when the hanging wall is raised above the footwall.A lateral fault, usually caused by shearing, occurs when the two walls grind against each other.This mov ...
(projdoc).
... have been treated by health care providers on the streets. At the same time, many people were reluctant to enter hospitals because they feared structural damage caused by aftershocks. "We need more paramedics and field hospitals to take care of those who are injured," Andy Mallarangeng, spokesman fo ...
... have been treated by health care providers on the streets. At the same time, many people were reluctant to enter hospitals because they feared structural damage caused by aftershocks. "We need more paramedics and field hospitals to take care of those who are injured," Andy Mallarangeng, spokesman fo ...
Earthquakes*
... have also occurred in the area of New Madrid, Missouri; Charleston, South Carolina; and an area extending from New Jersey to Massachusetts. (See figure 10.10 in your text). Why earthquakes occur in these other areas is not well understood. If earthquakes have occurred before, they are expected to oc ...
... have also occurred in the area of New Madrid, Missouri; Charleston, South Carolina; and an area extending from New Jersey to Massachusetts. (See figure 10.10 in your text). Why earthquakes occur in these other areas is not well understood. If earthquakes have occurred before, they are expected to oc ...
Faults
... Some scientists have hypothesized that these electromagnetic fields change in a certain way just before an earthquake Seismologists are also studying gas seepage and the tilting of the ground as warning signs of earthquakes. For the most part, however, they can't reliably predict earthquakes wit ...
... Some scientists have hypothesized that these electromagnetic fields change in a certain way just before an earthquake Seismologists are also studying gas seepage and the tilting of the ground as warning signs of earthquakes. For the most part, however, they can't reliably predict earthquakes wit ...
Why We Need a New Paradigm of Earthquake Occurrence
... Paleoearthquake and fault slip‐rate data are combined with the CIT‐USGS catalog for the period 1944 to 1992 to examine the shape of the magnitude‐frequency distribution along the major strike‐slip faults of southern California. The resulting distributions for the Newport‐Inglewood, Elsinore, Garlock ...
... Paleoearthquake and fault slip‐rate data are combined with the CIT‐USGS catalog for the period 1944 to 1992 to examine the shape of the magnitude‐frequency distribution along the major strike‐slip faults of southern California. The resulting distributions for the Newport‐Inglewood, Elsinore, Garlock ...
Search for earthquake precursors in multidisciplinary data
... Abstract. Abstract. Short-term variations in sets of geophysical and biological parameters that were monitored at the Garm research site for a long time are considered in relation to an earthquake of magnitude M = 5.3. Daily average data of electrical resistivity, electrototelluric field, electroche ...
... Abstract. Abstract. Short-term variations in sets of geophysical and biological parameters that were monitored at the Garm research site for a long time are considered in relation to an earthquake of magnitude M = 5.3. Daily average data of electrical resistivity, electrototelluric field, electroche ...
Finding the epicenter of an earthquake Background Information
... shock waves to spread out in all directions. The point at which the movement occurs is called the focus. Above the focus, on the surface of the earth is the epicenter. There are two distinct types of shock waves that are used to determine an earthquake’s epicenter: P-waves (primary waves) move in a ...
... shock waves to spread out in all directions. The point at which the movement occurs is called the focus. Above the focus, on the surface of the earth is the epicenter. There are two distinct types of shock waves that are used to determine an earthquake’s epicenter: P-waves (primary waves) move in a ...
earthquake . ppt - Junction Hill C
... against each other. Eventually, however, they build up so much pressure that the plates abruptly snap forward. Then the ground can shift a few feet—or a few dozen! Shock waves from that ...
... against each other. Eventually, however, they build up so much pressure that the plates abruptly snap forward. Then the ground can shift a few feet—or a few dozen! Shock waves from that ...
Earthquake prediction
Earthquake prediction is a branch of the science of seismology concerned with the specification of the time, location, and magnitude of future earthquakes within stated confidence limits but with sufficient precision that a warning can be issued. Of particular importance is the prediction of hazardous earthquakes likely to cause loss of life or damage to infrastructure. Earthquake prediction is sometimes distinguished from earthquake forecasting, which can be defined as the probabilistic assessment of general earthquake hazard, including the frequency and magnitude of damaging earthquakes in a given area over years or decades. It can be further distinguished from earthquake warning systems, which upon detection of an earthquake, provide a real-time warning to regions that might be affected.In the 1970s, scientists were optimistic that a practical method for predicting earthquakes would soon be found, but by the 1990s continuing failure led many to question whether it was even possible. Demonstrably successful predictions of large earthquakes have not occurred and the few claims of success are controversial. Extensive searches have reported many possible earthquake precursors, but, so far, such precursors have not been reliably identified across significant spatial and temporal scales While some scientists still hold that, given enough resources, prediction might be possible, many others now maintain that earthquake prediction is inherently impossible.