• The epicenter is the point on Earth's surface directly above the focus. . The wave motion is located at the outside surface itself, and as the depth below this surface increases, wave displacement becomes less and less. The damage it inflicts, from our human perception living on the surface as we do, is partly dependent on the depth below the Earth's surface of its location, called the hypocenter. Interestingly enough though, deep focus earthquakes can occur at depths of hundreds of miles and can be felt literally half a world away. Tsunamis. The Richter scale measures the largest wiggle (amplitude) on the recording, but other magnitude scales measure different parts of the earthquake. The point within the earth where the actual movement takes place is called the focus. An epicenter is a point on the Earth's crust directly above the focus or hypocenter of an earthquake. As there is a relative motion of these plates, there is stress built up, which breaks by releasing the stored energy known as shock waves. Improved Seismic Monitoringâ€"Improved Decision-Making, describes and assesses the varied economic benefits potentially derived from modernizing and expanding seismic monitoring activities in the United States. An instrument that records vibrations in the ground and determines the location and strength of an earthquake. One type of seismograph is a visible recording machine . The Rat Islands event was closely followed by a large tensional outer-rise event of March 30, 1965 (Ms 7.5, smaller star), which was located oceanward of the largest moment release . answer choices . Material is sheared side to side, perpendicular to the direction of wave propagation. The 2013 Okhotsk Sea Earthquake had it's epicenter off the coast Russia north of Japan at a depth of 609 km (380 miles), with strong shaking felt as far away as Moscow. A hypocenter (or hypocentre) (from Ancient Greek: ὑπόκεντρον [hypόkentron] for 'below the center') is the point of origin of an earthquake or a subsurface nuclear explosion.In seismology, it is a synonym of the focus. DEPARTMENT OF SCIENCE AND TECHNOLOGY PHILIPPINE INSTITUTE OF VOLCANOLOGY AND SEISMOLOGY EARTHQUAKE INFORMATION NO. The Focus Is The Surface Location . a seismic wave tht travels along the surface of Earth. Vibrations (earthquakes) occur as the deformed rock "springs back" to its original shape (elastic rebound). The focus is the exact point inside the crust of the earth where the quake begins, while the epicenter is the point on the earth's surface directly above the focus. This book addresses earthquakes, with a special focus on the Ghorka earthquake, which struck parts of central Nepal in April 2015. Earthquakes in Florida? A focus location for a single earthquake varies depending on seismometer location; epicenter locations do not vary. How do you find the focus of an earthquake? What is the unit used to measure the diameter of an atom? Such compound disasters can strike any earthquake-prone populated area. National Earthquake Resilience presents a roadmap for increasing our national resilience to earthquakes. Such waves correspond to ripples of water that travel across a lake. Found inside – Page 358Up to this chapter, we have considered the motion produced by earthquakes from the ... The location of the point focus of an earthquake in space and time is ... the location along a fault where the first motion of an earthquake occurs. Shallow-focus earthquakes are much more common than deep-focus earthquakes. located above the focus of an earthquake: epifocal (about an organ or tissue) located in the wrong place: heterotopic (also known as Mogul) empire located in India famous for its archictecture painting and carpets (1526-1857) Mughal (Anatomy) almond-shaped part; almond-shaped portion of the brain located in the temporal region, part of brain . The introductory and follow-up slides give a demonstration of how this is done (prior to students being asked to do it themselves), discuss the difference between the hypocenter (also known as the focus) of an earthquake and the epicenter, and cover the definition of a seismic gap with an . This explosion generates a combination of pressure and shear waves in the crust that radiate outwards from the focus.. Found inside – Page 2A comprehensive, topical, historical, and geographical summary of deep earthquakes and related phenomena. d. There can be more than one focus for a single earthquake but only one epicenter. It can help seismologists identify and map seismic hazards. Earthquake also known as quake , tremor or temblor is the phenomenon where there is a sudden release of extreme energy from the earth crust resulting in shaking and displacement of the ground along with the creation of sesmic waves. This fact sheet provides an overview of the S-P process to locate an earthquake. This book teaches us how to do that. The book describes the accumulation of the seismic energy in the focal region, its release, the shape and strength of the ground displacement. Magnitude is calculated using the height or amplitude of waves recorded on a seismograph and correcting for the distance They provide excellent focal points linking the remaining terms in the volume to the primary field of study. This Encyclopedia of Natural Hazards will remain a standard reference of choice for many years. Earthquakes occur when the plates get stuck but keep trying to move! An earthquake of magnitude 4.9 hits Tajikistan. 3.In locating the origin of the earthquake, seismologists first locate the epicenter. It is reported by the US Geological Survey. Earthquakes occur at depths from near the Earth's surface to about 700 km deep. Includes more than 400 illustrations, from both recent and traditional research articles, to help readers visualize mathematical relationships, as well as boxed features to explain advanced topics Offers incisive treatments of seismic waves ... The focus is the point on the surface used for location purposes. Shear wave from earthquake, moving slower than primary waves, through solid material only. A Focus Location For A Single Earthquake Varies Depending On Seismometer Location; Epicenter Locations Do Not Vary 参An Epicenter Location For A Single Earthquake Varies Depending On Seismometer Location; Focus Locations Do Not Vary. The focus is the place inside Earth’s crust where an earthquake originates. Principal focus is a point on the principal axis where the rays which are incident parallel to the principal axis meet after reflection. Focus and epicenter are words used in geology; this word causes a lot of confusion amongst students while studying the causes of earthquakes. Another type,volcanic earthquakes, occur in conjunction with volcanic activity. Related Videos. Note that the earthquake arrives first on station C, so C is a good first guess for the location. All earthquakes deeper than 70 km are localized within great slabs of lithosphere that are sinking into the Earth's mantle. Earthquakes most often occur along existing faults whenever the frictional forces on the fault surfaces are overcome. The epicenter is the point on land directly above the focus. An earthquake is the sudden movement or trembling of the Earth’s tectonic plates, that creates the shakes of the ground. When an epicenter "slips," the fault is the point of slippage where all energy is released to form the earthquake. In an earthquake, the initial point where the rocks rupture in the crust is called the focus. Seismic waves: Waves that transmit the energy released by an earthquake. Therefore, each earthquake produces a range of intensity values, ranging from highest in the epicenter area to zero at a distance from the epicenter. The primary goal of this book is to present in a rather tutorial form all the necessary information and techniques pertinent to essential seismogram interpretation. The place inside the earth’s crust where the earthquake is generated, is called focus of the earthquake. Outside seismology, the term hypocenter is also used as a synonym for ground zero, the surface point directly beneath a nuclear airburst. Earthquakes cause basically 2 types of waves in the land. There are two types of earthquakes: tectonic and volcanic earthquakes. Of the three earthquake depths, ':| earthquakes occur the farthest laterally from the trench at the Earth's surface. The USGS currently reports earthquake magnitudes using the Moment Magnitude scale, though many other magnitudes are calculated for research and comparison purposes. Slippage at the weakest point (the focus) occurs. In about 75% of earthquakes, the focus is in the top 10 to 15 kilometers (6 to 9 miles) of the crust. Geologists had forecast a major earthquake in this area based on historical data, especially the lack of a major seismic event along the San Andreas fault since 1906 -- the 8.3 San Francisco earthquake. location to the epicenter of an earthquake. There are two important locations in any earthquake. earthquake focus Note: The figure is not to scale. It is also a fundamental piece of information necessary for facilitating studies of Earth's internal structures. These occur when rocks in the earth’s crust break due to geological forces created by movement of tectonic plates. This book is aimed at researchers and students in coastal science and engineering as well as at policy makers, environmental planners and coastal managers. The point on the earth’s surface directly above the focus is called epicentre. The focus of the earthquake is the A. location in which the earthquake was first felt. Earthquakes in Chile. Epicenter Location on Earth's surface directly above the focus of the earthquake 5. Figure 3 1. What is the epicenter of an earthquake. Secondary waves Measuring at 8.0 M s (7.9 M w), the earthquake's epicenter was located 80 kilometres (50 mi) west-northwest of Chengdu, the provincial capital, with . Focus is the point below the surface of the earth where the quake began while the epicenter is the point directly above the focus, which is situated on the surface of the earth. The waveform analysis indicates unilateral rupture from east to west and three large pulses of moment release located along the fault (Beck and Christensen, 1991). the point on the axis of a lens or mirror to which parallel rays of light converge or from which they appear to diverge after refraction or reflection. Sudden shake under water is called tsunami. How can the observed periodic trends in reactivity of the elements be explained. Where is the focus of an earthquake located? Another seismic wave used to determine focal depth is the sP phase – an S wave reflected as a P wave from the Earth’s surface at a point near the epicenter. 533-S1-MSS05 8/13/04 4:46 PM Page 212 We have employed numerical approaches to study earthquake nucleation on geometrically complex faults governed by either slip-dependent friction or rate- and state-dependent friction. When energy is released at the focus, seismic waves travel outward from that point in all directions. first occurs and energy is released is called the focus of an earthquake, as shown in Figure 3.The point on Earth's sur-face located directly above the earthquake focus is called the epicenter of the earthquake. This 8-hour free course looked at why, where and what happens when earthquakes occur and at how they are assessed qualitatively and quantitatively. (70 to 300 km depth) green, and all deep focus earthquakes (depths greater than 300 km) blue. The center of the circle will be the location of your seismograph. A tectonic earthquake is one that occurs when the earth’s crust breaks due to geological forces on rocks and adjoining plates that cause physical and chemical changes. An earthquake is the sudden movement of Earth’s crust. The location of the epicenter of the earthquake that produced the observed wave pattern most likely is in the 1) crust in zone 1 3) crust in zone 3 2) mantle in zone 2 4) core of the Earth 28. The earthquake list (Figure 5) contains earthquakes of magnitude greater than or equal to 6.0 that occurred worldwide during the calendar year 2000 (176 events). 2. # Shallow focus earthquakes are found within the earth's outer crustal layer, while deep . This book gathers 23 papers by top experts from 11 countries, presented at the 3rd Houston International Forum: Concrete Structures in Earthquake. 60 seconds. Knowing precisely where an earthquake occurred is an important piece of scientific information. When a focus "slips," the point of slippage is the fault, directly below the epicenter on the surface. 2010 Haiti earthquake, large-scale earthquake that occurred January 12, 2010, on the West Indian island of Hispaniola, comprising the countries of Haiti and the Dominican Republic.Most severely affected was Haiti, occupying the western third of the island.An exact death toll proved elusive in the ensuing chaos.The Haitian government's official count was more than 300,000, but other estimates . This causes a release of energy, and the energy waves travel in all directions. For a lens, or a spherical or parabolic mirror, it is a point onto which collimated light parallel to the axis is focused. A home destroyed by an earthquake. Earthquake mechanism. The main importance in determining the epicentre is so that the fault that ruptured causing the earthquake can be identified. Seismograph. 2 Introduction • Earthquakes represent the vibration of Earth because of movements on faults. the focus of an earthquake is beneath the surface of the earth answer choices . 9/17/2021, 6:53:40 PM. Focus (aka Hypocenter) is the location in the Earth where the earthquake starts. Locating the Epicenter The source of an earthquake is called the focus, which is an exact location within Earth were seismic waves are generated by sudden release of stored elastic energy. This causes an earthquake! # Shallow-focus earthquakes occur at depths less than 70 km, while deep-focus earthquakes occur at greater focal depths of 300 - 700 km. The focus was located at a depth of 113 km. If someone gave you $20, what would you buy with it? An earthquake epicenter can be located from records made of earthquake waves on devices called seismographs. The Tohoku earthquake caused a tsunami. From this point, energy travels outward in different types of waves. A tsunami is a large sea wave or series of waves that can be generated by an earthquake. Shakeograph. The focus (more correctly termed the hypocenter) of an earthquake is the point in the earth where the earthquake rupture or fault movement actually occurred. . The difference between the epicenter and the focus of an earthquake lies in the location of their origins. c. The epicenter is the surface location of an earthquake and is located above the focus. seismic focus is located below earth surface. Hot spot. As shown in Figure 1, the point on the surface directly above the focus is called the epicenter. Multiple Choice Questions for Earthquakes - Chapter 16 Each chapter will include a few questions designed to test your knowledge of material covered in the chapter and in the Internet-based resources. Earthquake epicenters are located using triangulation, this is possible once seismograms of the earthquake - coming from at least three locations - have been analyzed properly. The 2008 Sichuan earthquake (Chinese: 汶川大地震; pinyin: Wènchuān dà dìzhèn; lit. It has 34 provinces, of which five have special status. Using your compass, draw a circle with a radius equal to the number you came up with in Step #2 (the radius is the distance from the center of a circle to its edge). Focus. noun. In about 75% of earthquakes, the focus is in the top 10 to 15 kilometers (6 to 9 miles) of the crust. A teacher walks into the Classroom and says If only Yesterday was Tomorrow Today would have been a Saturday Which Day did the Teacher make this Statement? t 500,000 earthquakes happen every year around the world. Most earthquakes are too small for people to notice. Discover more about this feature of the natural world in Earthquakes, a title in the Focus on Earth Science series. It is reported by the US Geological Survey. If you could choose to stay a certain age forever, what age would it be? Location of the Epicenter. The foci of deep-focus earthquakes and I: earthquakes are always exclusively located on the subducting plate at a convergent boundary. The motion of any point is circular. Found inside – Page 2165The book consists of two parts and presents a cross-section of cutting-edge research in the field of computational earthquake physics. Found insideThis is the second earthquake reported by Matthew. The first one took place on Good Friday, when the noonday sky turned black and Jesus died. The epicenter of an earthquake is the location on the surface directly above the earthquake focus. 1. Turner of Oxford, England. This wave is recorded after the pP by about one-half of the pP-P time interval. There are four different types of earthquakes: tectonic, volcanic, collapse and explosion. What are the characteristics of tony tan caktiong that make him successful. If the fault is previously unknown (such as the 2010 Canterbury earthquake), then it is important because it means that the hazard models for the area need improvement. The country shares land borders with Papua New Guinea, East Timor, and the eastern part of Malaysia. The earthquake struck below the North Pacific Ocean, 130 kilometers (81 miles) east of Sendai, the largest city in the Tohoku region, a northern part of the island of Honshu. The epicenter of the earthquake is somewhere on the edge of that circle. Summary: 1.An earthquake's epicenter and focus are both determinants of the origin of the ground movements. The deadly Izmit earthquake struck northwest Turkey on August 17, 1999, at 3 a.m. Over 14,000 residents of the region were killed as poorly constructed . Distance traveled from the earthquake epicenter (km) S-P time interval (minutes) Earthquakes are the vibrations caused by rocks breaking under stress. A tsunami—Japanese for "harbor wave"—is a series of powerful wave s caused by the displacement of a large body of water. Earthquake foci may be shallow (less than 70 km from Earth's surface) to deep (greater than 300 km deep . The great earthquake broke loose some 20 to 25 seconds later, with an epicenter near San Francisco. This report presents data in map and table form for earthquake parameters such as hypocentral coordinates and magnitudes for earthquakes located by the southern Great Basin Seismic network for the time period January 1, 1984, through ... Many earthquakes in California occur between 2 and 12 kilometers depth and we will guess a 6 kilometer depth. A collection of Javascript utilities to be incorporated into scientific courseware. Such waves occur over land that is full of water. The focus of the earthquake is the A. location in which the earthquake was first felt. The book can prove helpful for geologists, seismologists, meteorologists, or practitioners in the field of civil and structural engineering. seismic focus is the point from where the waves arise. Earthquakes can happen along any type of plate boundary. The point on the surface directly . Found insideThis book describes the main types of seismic signals at volcanoes, their nature and spatial and temporal distributions at different stages of eruptive activity. B. place where the P-wave ends. The principal focus is defined as the point where a beam parallel to the principal axis appears to diverge converges from a point on the principal axis after passing through the lens. Epicenter. The fault may rupture in one direction from the hypocentre, or in both directions. Destruction after the largest earthquake of the century in Valdivia on May 22, 1960 Time line of Earthquakes in Chile. Earthquakes occur . 9/17/2021, 6:53:40 PM. This is the location that scientist calculate. What figures of speech found pliant like a bamboo tree? This is the second of two volumes devoted to earthquakes and multi-hazards around the Pacific Rim. Earthquakes can cause dam walls to crack and eventually collapse, sending raging waters into surrounding areas and causing severe flooding. Elastic rebound. Relation between focus and epicenter focus hypocenter of an earthquake solved ion 2 pts which location what is the epicenter of an earthquake relation between focus and epicenter What Is The Relation Between Focus And Epicenter QuoraWhat S The Difference Between Focus And Epicenter Of AnEarthquakes Everything You Need To Know Clearias10 M EarthquakesEarthquakes And… 30 seconds . The seismogram below shows the time that an earthquake P-wave arrived at a seismic station in Albany, New York. Earthquake is a term used to describe both sudden slip on a fault, and the resulting ground shaking and radiated seismic energy caused by the slip, or by volcanic or magmatic activity, or other sudden stress changes in the earth. . The book is a collaboration of faculty from Earth Science departments at Universities and Colleges across British Columbia and elsewhere"--BCcampus website. Seismologists have registered an earthquake of magnitude 4.9 in Tajikistan. The focus was located at a depth of 113 km. New Zealand sits astride a major plate boundary. This shaking can destroy buildings and break the Earth’s surface. : 8426-1468 Fax: 8927-1087 Earthquake intensity is very different from earthquake magnitude. Here is a good explanation on a site for seismology students at Michigan Tech which takes its seismogram illustrations from Bolt's textbook on earthquakes (1978). Earthquake epicenter. Earthquakes are caused due to sudden tectonic movements in the earth’s crust. The country's capital, Jakarta, is the world's second-most populous urban area. It is from the epicenter that earthquake waves. 4. Sometimes an earthquake has foreshocks. Do the same thing for the distance to . Found inside – Page 228An isolated origin deeper than normal has been located near the north ... In their recent general survey of deep - focus earthquakes , Gutenberg and Richter ... Seismologists have registered an earthquake of magnitude 4.9 in Tajikistan. An earthquake of magnitude 4.9 hits Tajikistan. The evidence for deep-focus earthquakes was discovered in 1922 by H.H. Earthquakes contd september 19 and 20 th 8 6 8 finding the epicenter earthquake lab 6 8 finding the epicenter, I determining earthquake focus in a local region for chegg earthquake lab 6 8 finding the epicenter i determining earthquake focus in a local region for chegg earthquake location, What Is The Epicenter Of An Earthquake Definition Location Lesson Transcript Study, Measuring Earthquakes Seismic Waves Created By Are Measured Seismographs You Kidsknowit 2 87k Subscribers Subscribe How A Seismograph Works Info Ping Tap To Unmute More S Your Browser Can T, What S The Difference Between Focus And Epicenter Of An Earthquake Quora, How Are Earthquakes Located Incorporated Research Insutions For Seismology, The Epicenter Of An Earthquake Is Point On Earth S Surface Directly Above Brainly, Did Palm Desert Just Have An Earthquake In California, How To Use Earth Fault Loop Impedance Tester. Richter scale used for shallow-focus earthquakes Shallow-focus earthquakes occur between 0 and 40 miles deep. The tectonic plates are constantly moving but sometimes they get stuck. epicenter is the point above earth surface from the seismic focus. Fires are probably the single most important secondary effect of earthquakes. The earthquake was felt from southern Oregon to south of Los Angeles and inland as far as central Nevada. Ask questions, submit answers, leave comments. Also available is The International Handbook of Earthquake and Engineering Seismology, Part B. Two CD-ROMs containing additional material packaged with the text It should be noted, however, that the geographic distribution of smaller earthquakes is less completely determined . Primary waves (p-waves) cause particles in the ground to move in a push-pull motion similar to a coiled spring. Near the epicenter of the earthquake, in the city of Le´ogaˆne, it is the point on Earth's surface directly above the earthquake's focus. . Tags: . When an earthquake suddenly ruptures the Earth's crust at the focus it is like a large explosion. Globally growing demand of energy and mineral resources, reliable future projection of climate processes and the protection of coasts to mitigate the threats of disasters and hazards require a comprehensive understanding of the structure, ... The second general type of earthquake wave is called surface wave, because its motion is restricted to near the ground surface. Sometimes an earthquake has foreshocks. Why is cotton with saline solution and not with alcohol or acetone to remove the blood satin? D. point of failure of crustal rocks where the waves originate. The location below the earth’s surface where the earthquake starts is called the hypocenter, and the location directly above it on the surface of the earth is called the epicenter. It is the origin of the earthquake. Earthquake ppt 1. Where is the focus of an earthquake located? Focus is the point where light rays originating from a point on the object converge. Plates: Massive rocks that make up the outer layer of the Earth's surface and whose movement along faults triggers earthquakes. B. place that sustains the most damage. The focus, or "hypocentre", of an earthquake is the point where it originated within the Earth. Below that depth, rocks are too hot and ductile, so they tend to bend and flow rather than break in a brittle manner. When scientists find the focus, they can easily find the epicenter. Q. The seismic activities in an area determine the type and intensity of the earthquake. Crustal plates moving against each other produce most of the shallow-focus earthquakes here on Earth. The intensity is a number (written as a Roman numeral) describing the severity of an earthquake in terms of its effects on the earth’s surface and on humans and their structures. NOTE: Out of stock; self-printing only. The pressure waves are longitudinal waves in many ways are similar to sound waves - except that sound waves travel through the air, whereas the longitudinal seismic waves travel . That intense pressure becomes the cause of the fault line( Like San Andrea Fault line), and plates move over against or apart from each other.. Shallow earthquakes cause the most damage because the focus is near where people live. The focus of an earthquake determines the location of the epicenter. Found inside – Page 75Earthquake Engineering Research Institute Conference Proceedings ... Hypocenters in the shallow - focus volcanic - terrane earthquake zone were located by ... In general, the term "deep-focus earthquakes" is applied to earthquakes deeper than 70 km. This is an earthquake. Chile is located on a tectonic plate boundary and a subduction zone called the Peru-Chile trench. In fact, the great majority of earthquake foci are shallow. the focus of the earthquake. In the 83 years prior to the 1906 quake, seven damaging earthquakes of magnitude 6.5 or greater occurred. Material is sheared side to side, perpendicular to the direction of wave propagation. 'Great Wenchuan earthquake'), also known as the Great Sichuan earthquake or Wenchuan earthquake, occurred at 14:28:01 China Standard Time on May 12, 2008. location on Earth's surface directly above the focus. The strength of shaking from an earthquake diminishes with increasing distance from the earthquake's . epicenter is vertically above seismic focus above earth surface. The center point of this disturbance is known as the focus of an earthquake.From the focus, waves of energy traveled towards the surface, shaking the surface within. Let's guess an origin time of 10 seconds . Earthquakes originate at a point called the focus (plural foci). The point on Earth's surface directly above an earthquake's starting point or focus. Tuesday's quake was less energetic but more destructive than September's. It is in the nature of . It is noted that the epicenter of the earthquake was located 58 km southeast of the village of Murghab. What is difference between focus and principal focus? When they get stuck, pressure builds up and the plates will suddenly move. in the crust. Tectonic earthquakes are produced by sudden movement along faults and plate boundaries. Registered users can ask questions, leave comments, and earn points for submitting new answers. The point on the Earth's surface directly above the focus is called the earthquake epicentre. What is focus in earthquake in short answer? It is noted that the epicenter of the earthquake was located 58 km southeast of the village of Murghab. It is not necessary for the rays to be parallel to the principal axis. What Is The Epicenter Of An Earthquake Definition Location Lesson Transcript Study. Q. The book covers multi-disciplinary topics in observational, computational and applied geophysics in aspects of solid earth system. When an earthquake strikes, the intensity of earthquake shaking determines the severity of damage. The point on the Earth's surface directly above the focus is the epicenter. John Ristau shows how seismic waves are analysed to find the source location and magnitude of an earthquake This book is devoted to different aspects of earthquake research. Depending on their magnitude and the placement of the hypocenter, earthquakes have the potential to be very destructive. The earthquake's origin lies below the surface, with the epicenter being the point on . The epicenter is the point on the land surface that is directly above the focus. The epicenter is simply used for location purposes. 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Important is the location of an earthquake of the village of Murghab volcanic earthquakes 70.... Found inside – Page 358Up to this chapter, we have employed approaches... What do you find the epicenter is located directly above the earthquake 5 the rupture...., records from three different seismographs are needed deep earthquakes and related phenomena Figure... If the epicenter ( Figure 13.2 ) wave or series of waves in the center of the story father! Earthquakes from the hypocentre may be at the first motion of an earthquake. use different sized dots for different! My father tragedy by carlos bulosan epicenter can be located from records made earthquake. Plates get stuck City, PHILIPPINES Tel to a coiled spring the focus is called the focus of an.. Discovered in 1922 by H.H our national Resilience to earthquakes all directions not with alcohol or acetone to the. Be at the edge of that circle what is the point on the surface of hypocenter. Surface of the most important is the A. location in which the rock breaks and moves is called the is!
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