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GB 17740-2017 English PDF

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GB 17740-2017: General ruler for earthquake magnitude
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GB 17740: Evolution and historical versions

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GB 17740-2017English399 Add to Cart 4 days [Need to translate] General ruler for earthquake magnitude Valid GB 17740-2017
GB 17740-1999English239 Add to Cart 3 days [Need to translate] General ruler for earthquake magnitude Obsolete GB 17740-1999

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Standard similar to GB 17740-2017

GB/T 17742   DB/T 60   GB 50191   GB 17741   

Basic data

Standard ID GB 17740-2017 (GB17740-2017)
Description (Translated English) General ruler for earthquake magnitude
Sector / Industry National Standard
Classification of Chinese Standard P15
Classification of International Standard 91.120.25
Word Count Estimation 20,284
Date of Issue 2017-05-12
Date of Implementation 2017-12-01
Older Standard (superseded by this standard) GB 17740-1999
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the method and method of determination of seismic magnitude. This standard applies to earthquake monitoring, earthquake emergency, information dissemination, scientific popularization, news reports and other work related to the magnitude of the earthquake. This standard does not apply to other types of magnitude used by scientific research institutes.

GB 17740-2017: General ruler for earthquake magnitude

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General ruler for earthquake ICS 91.120.25 P15 National Standards of People's Republic of China Replacing GB 17740-1999 Earthquake magnitude requirements 2017-05-12 released 2017-12-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released Directory Preface III Introduction IV 1 Scope 1

2 terms and definitions

Method 3 4 use regulations 5 Appendix A (Normative Appendix) Local Seismic Level Gauges Table 7 Appendix B (normative) Parameters and transfer functions of seismic instruments Appendix C (normative appendix) Seismic surface wave period values for different epicentral distances 12 Appendix D (normative) Q (Δ, h) value Table 13 References 16

Foreword

Chapter 2 of this standard and c) in 4.2.2 are recommended and the remainder is mandatory. This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB 17740-1999 "Regulations for Seismic Magnitude". The main technical content of this standard compared with GB 17740-1999 changes as follows. --- Added 16 terms and definitions. "earthquake" "source" "epicenter" "epicenter" "source depth" "shallow source earthquake" "source earthquake" "Deep earthquake" "earthquake body wave" "earthquake moment" "local magnitude" "surface wave magnitude" "body wave magnitude" "moment magnitude" "particle movement bit Move "and" earthquake express "; --- modified the definition of three terms. "particle movement" "particle movement speed" and "gauge function"; --- deleted the definition of a term. "ground displacement"; --- increase the local magnitude ML, short cycle body wave magnitude mb, broadband band wave magnitude mB (BB), wide band surface magnitude MS (BB) And the method of measuring the moment magnitude MW; --- modified the use of seismic magnitude requirements. This standard is proposed by China Seismological Bureau. This standard is under the jurisdiction of the National Seismic Standardization Technical Committee (SAC/TC225). The drafting of this standard. China Earthquake Administration Institute of Geophysics, China Seismic Network Center, the National Marine Environment Forecast Center. The main drafters of this standard. Liu Ruifeng, Chen Yuntai, Xu Shaoxie, Ren Xiao, Xu Zhiguo, Xue Feng, Feng Yijun, Zheng Xiufen, Yang Hui, Wang Liyan, Rhithericulatesigma.2010-11, and Results Rhitherded composition calling Results Rhitherical calling rounds.ither outcome, This standard replaced the previous version of the standard release. --- GB 17740-1999.

Introduction

GB 17740-1999 since the implementation of the norms of the seismic magnitude of the measurement methods and the use of the provisions of the earthquake monitoring and forecasting, earthquake damage Royal, emergency rescue and other earthquake disaster reduction related work has played an important role, and achieved good scientific and social benefits. The main reasons for the revision of GB 17740-1999 are. --- After ten years of development, China's seismic observation system to achieve a digital and network of historic breakthroughs, to the end of.2007, China's official operation of all seismic stations are digital stations, instrument features, data transmission, data analysis and processing side Type, magnitude determination of the timeliness of the fundamental changes have taken place; Since the implementation of GB 17740-1999, China has accumulated a large number of seismic observations, in the earthquake magnitude determination of the New understanding; - Internationally made important progress in the method of determining the magnitude and release rules, and gradually applied. Earthquake magnitude requirements

1 Scope

This standard specifies the method and method of determination of seismic magnitude. This standard applies to earthquake monitoring, earthquake emergency, information dissemination, scientific popularization, news reports and other work related to earthquake magnitude. This standard does not apply to other types of magnitude used by scientific research institutes.

2 terms and definitions

The following terms and definitions apply to this document. 2.1 Earthquake Earth shaking. Including natural earthquakes (tectonic earthquakes, volcanic earthquakes, subsidence earthquakes), induced earthquakes (mine excavation activities, reservoir water storage, etc.) Caused by earthquakes) and artificial earthquakes (blasting, nuclear explosions, objects falling, etc.). Generally refers to the tectonic earthquakes in natural earthquakes. Note. rewrite GB/T 18207.1-2008, definition 3.1. 2.2 Source earthquakesource; seismicsource Generate the source of the earthquake. [GB/T 18207.1-2008, definition 3.2] 2.3 Epicentre The projection of the source on the ground. [GB/T 18207.1-2008, definition 3.7] 2.4 Epicentraldistance The distance from the epicenter to a specified location. Note. In the determination of the local magnitude ML, the epicentral distance of the unit is km (km); in the measured surface wave magnitude MS, wide band surface magnitude MS (BB), short cycle Wave magnitude mb and broadband band wave magnitude mB (BB), the epicenter is in degrees (°). 1 ° ≈ 111.2km. 2.5 Epicentral position Earthquake latitude and geography latitude. [GB/T 18207.2-2005, Definitions 3.1.9.2] 2.6 Focal depth The distance between the source and the epicenter. [GB/T 18207.2-2005, definition 3.1.9.3] 2.7 Shallow [source] earthquake shalowearthquake Earthquake with focal depth less than 60 km. [GB/T 18207.2-2005, definition 3.1.6] 2.8 Source earthquake Earthquakes with focal depths in the range of 60 km ~ 300 km. [GB/T 18207.2-2005, definition 3.1.7] 2.9 Deep - focusearthquake Earthquakes with focal depths greater than 300 km. [GB/T 18207.2-2005, definition 3.1.8] 2.10 Seismic surface waves seismicsurfacewave A seismic wave propagating along the surface of the earth. Common are Lever and Rayleigh waves. Note. rewrite GB/T 18207.2-2005, definition 4.1.3.2. 2.11 Seismic body wave Earthquake waves spread within the earth. Usually including seismic longitudinal waves and seismic shear waves. Note. rewrite GB/T 18207.2-2005, defined 4.1.3.1. 2.12 Particle movement particlemotion In the course of a seismic wave, the movement of a certain point on earth. 2.13 Particle motion displacement ofparticlemotion When the particle movement, the distance relative to the original static point. 2.14 Particle movement velocity When the particle moves, the movement of the particle moves to the quotient of the time. 2.15 Seismic moment An absolute measure of the size of the earthquake, expressed in M0. [GB/T 18207.2-2005, definition 3.1.9.10] 2.16 Magnitude earthquakemagnitude Measure the magnitude of the earthquake. 2.17 Local magnitude localmagnitude Close seismic magnitude The magnitude of the shear wave (S-wave) or short-period Loft wave (Lg wave) recorded by an earthquake with an epicentral distance of 1000 km, Said. Note. rewrite GB/T 18207.2-2005, definition 3.1.9.4. 2.18 Body wave magnitude bodywavemagnitude Seismic magnitude measured by seismic wave recording. One of the short-period body wave recorded with the body wave magnitude is called short-period body wave magnitude, with mb The amplitude of the bulk wave measured by broadband wave recording is called the broadband band wave magnitude and is represented by mB (BB). Note. rewrite GB/T 18207.2-2005, definition 3.1.9.5. 2.19 Surface wave magnitude The magnitude measured by seismic surface wave recording is usually measured by horizontal to surface wave recording, expressed as MS; recorded vertically with wideband The measured surface wave magnitude is called the wide band surface wave magnitude, denoted by MS (BB). Note. rewrite GB/T 18207.2-2005, definition 3.1.9.6. 2.20 Moment of magnitude momentmagnitude The magnitude of the earthquakes is expressed in MW. [GB/T 18207.2-2005, definition 3.1.9.7] 2.21 Gauge function When the magnitude is measured at different observation points, the correction value is required for the seismic wave to be attenuated with the magnitude of the epicenter or the depth of the source. 2.22 Earthquake report rapidearthquakeinformationreport On the time of occurrence of earthquakes, places, magnitude and other rapid forecasting. [GB/T 18207.1-2008, Definitions 4.15]

3 Determination method

3.1 Local magnitude Determination of the local magnitude ML should be used to simulate the maximum amplitude of the S-wave (or Lg wave) recorded horizontally in the DD-1 short-period seismograph, The maximum amplitude should be greater than the interference level of more than 2 times, according to formula (1). ML = lg (A) R (Δ) A = AN AE (1) Where. A --- maximum amplitude in microns (μm); AN - the maximum amplitude of the S-wave or Lg-wave in the north-south direction, in microns (μm); AE --- east to west S wave or Lg wave maximum amplitude, in microns (μm); Δ - epicenter, in kilometers (km); R (Δ) - The geometric function of the local magnitude, see Appendix A. The instrument parameters and transfer functions of the DD-1 short-period seismograph are given in Appendix B, B.1. 3.2 surface wave magnitude Determine the surface wave magnitude MS of the shallow earthquakes, the original broad band record should be recorded into the base (SK) long-period seismograph record, the use of water The maximum and its period of the motion of the plane wave surface, calculated according to formula (2). MS = lg ÷ 1.66lg (Δ) 3.5 (2 ° < Δ < 130 °, 3s \u003cT \u003c25s) (2) Where. A - Horizontal plane to the maximum particle motion displacement, take two horizontal to the particle movement displacement vector sum of the model, the unit is micron (μm); Δ - epicenter, in degrees (°); T --- A corresponds to the cycle, in seconds (s). When measuring the two horizontal components of the maximum particle motion displacement, the same time or period difference should be taken within 1/8 of the cycle. If two points When the periodicity is not consistent, then the weighted sum is given, and T is calculated according to Eq. (3). T = TNAN TEAE AN AE (3) Where. AN - north - south surface wave motion displacement in microns (μm); AE --- east-west surface wave particle motion displacement in microns (μm); TN --- AN corresponds to the cycle, in seconds (s); TE --- The period corresponding to AE, in seconds (s). When measuring the surface wave magnitude MS, the period T of the surface wave is preferably in the range given in Appendix C; the instrument of the long-period seismograph in the base (SK) Refer to B.2 for parameters and transfer functions. 3.3 wide band surface wave magnitude The wide-band surface wave magnitude MS (BB) of the shallow earthquakes should be measured in the vertical velocity-type wide-band recording. The maximum value, according to formula (4). MS (BB) = lg Vmax 2π ÷ 1.66lg (Δ) 3.3 (2 ° < Δ < 160 °, 3s \u003cT \u003c60s) (4) Where. Vmax - the maximum value of the velocity of the vertical plane to the surface wave, in microns per second (μm/s); T --- Vmax corresponds to the cycle, in seconds (s); Δ - epicenter, in degrees (°). 3.4 short cycle body wave magnitude Determination of short-period body wave magnitude mb, should be recorded vertically to the broadband band into a DD-1 short-period seismograph recording, measuring P wave (Including P, pP, sP, and even can be PcP and its tail, generally taken before the PP wave) the maximum displacement of the particle movement, according to formula (5) Calculate. mb = lg ÷ Q (Δ, h), 5 ° < Δ < 100 ° (T < 3s, 0≤h≤700km) (5) Where. A - the maximum value of the motion displacement of the P-wave particles in micrometers (μm); T --- A corresponds to the cycle, in seconds (s); Δ - epicenter, in degrees (°); h - the depth of the source, in kilometers (km); Q (Δ, h) - the gauge function of the vertical P-wave wave magnitude, see Appendix D. The instrument parameters and transfer functions of the DD-1 short-period seismograph are given in B.1. 3.5 Broadband body wave magnitude Determine the broadband band magnitudes mB (BB), the P-wave train (including P, pP, sP, etc.) should be measured on the vertical velocity-type wideband recording Can be PcP and its tail, generally taken before the PP wave) the maximum speed of particle motion, calculated according to equation (6). mB (BB) = lg Vmax 2π ÷ Q (Δ, h) (5 ° < Δ < 100 °, 0.2s \u003cT \u003c30.0s,0≤h≤700km) (6) Where. Vmax - the maximum value of the velocity of the entire P wave train, in microns per second (μm/s); T --- Vmax corresponds to the cycle, in seconds (s); Δ - epicenter, in degrees (°); Q (Δ, h) - the gauge function of the vertical P-wave wave magnitude, see Appendix D. 3.6 moment magnitude The moment magnitude MW should be calculated using the measured seismic moment according to Eq. (7) MW = (lgM0-9.1) (7) Where. M0 --- seismic moment, the unit is Newton meters (N · m).

4 use regulations

4.1 Determination of magnitude 4.1.1 Seismic stations (stations) responsible for day-to-day seismic monitoring shall be used to determine all possible magnitude, including ground, in accordance with the method of Chapter 3 (ML), surface wave magnitude MS, wideband surface wave magnitude MS (BB) and moments Magnitude MW. 4.1.2 The measured magnitude should not be converted from each other. 4.2 magnitude release 4.2.1 Seismic network in the release of earthquake newsletter information, the timely determination of earthquakes M0 earthquake, should give priority to select the moment magnitude MW for For the release of the magnitude. 4.2.2 Seismic network In the release of seismic information, the earthquake can not be measured in time earthquake M0 earthquake, should be based on the following principles to determine the external Thickness of cloth. a) For shallow earthquakes with ML < 4.5, the local magnitude ML should be chosen as the magnitude of the external release; b) For shallow earthquakes with ML ≥ 4.5, the wide-band surface wave magnitude MS (BB) should be chosen as the magnitude of the external release; c) For medium-source and deep-seated earthquakes, it is appropriate to select the short-period bulk wave magnitude mb or the broadband band-wave magnitude mB (BB) for external release Magnitude. 4.2.3 The magnitude of the external release of the application of M said, should not be added "Richter scale" "moment magnitude" and other additional information. 4.2.4 Seismic network In the preparation of seismic catalog, should also list all the measured magnitude and external release of the magnitude. Examples are shown in Table 1. Table 1 Examples of Seismic Representation in Seismic Catalog Serial number Time of shock (UTC) latitude (°) longitude (°) depth km ML MS MS (BB) mb mB (BB) MW M Reference place names 05. 46. 19.0 38.10N 142.50E 20 8.7 8.6 7.3 7.7 9.0 9.0 Japan East coast of the sea 23. 45. 56.5 34.54N 104.21E 15 6.6 6.7 6.5 5.9 6.3 6.5 Minxian County, Gansu Province Table 1 (continued) Serial number Time of shock (UTC) latitude (°) longitude (°) depth km ML MS MS (BB) mb mB (BB) MW M Reference place names 05. 09. 37.0 27.88N 101.48E 11 4.3 4.1 4.0 4.3 4.5 4.3 Sichuan Yanyuan 07. 03. 40.9 43.16N 131.04E 570 4.5 4.5 4.5 Jilin Hunchun 4.2.5 At all levels of seismic work departments or agencies to issue seismic information, conduct science education and other work, should use the release of the magnitude of M. 4.2.6 The news media such as television stations, radio stations, newspapers, magazines and websites should use the published magnitude M when issuing seismic information. 4.2.7 After the earthquake disaster, the governments at all levels should start the earthquake emergency response according to the published magnitude M to carry out the earthquake emergency work.

Appendix A

(Normative appendix) Local Seismic Level Gauges Function Table The local magnitude scale function is shown in Table A.1. Among them, Heilongjiang, Jilin, Liaoning, Inner Mongolia, Beijing, Tianjin, Hebei, Shanxi, Shandong, Henan, Ningxia, Shaanxi should use R11; Fujian, Guangdong, Guangxi, Hainan, Jiangsu, Shanghai, Zhejiang, Jiangxi, Hunan, Hubei, Anhui should use R12; Yunnan, Sichuan, Chongqing, Guizhou should use R13, Qinghai, Tibet, Gansu should use R14, Xinjiang should use R15. Table A.1 Local magnitude scale function values Δ/km R11 R12 R13 R14 R15 0 to 5 1.9 1.8 2.0 2.0 2.0 10 2.0 1.9 2.0 2.1 2.1 15 2.2 2.1 2.1 2.2 2.2 20 2.3 2.2 2.2 2.3 2.3 25 2.5 2.4 2.4 2.5 2.5 30 2.7 2.6 2.6 2.6 2.6 35 2.9 2.8 2.7 2.8 2.8 40 2.9 2.9 2.8 2.9 2.8 45 3.0 3.0 2.9 3.0 2.9 50 3.1 3.1 3.0 3.1 3.0 55 3.2 3.2 3.1 3.2 3.1 60 3.3 3.3 3.2 3.2 3.2 70 3.3 3.3 3.2 3.2 3.2 75 3.4 3.3 3.3 3.3 3.3 85 3.3 3.3 3.3 3.4 3.3 90 3.4 3.4 3.4 3.5 3.4 100 3.4 3.4 3.4 3.5 3.4 110 3.5 3.5 3.5 3.6 3.6 120 3.5 3.5 3.5 3.6 3.6 130 3.6 3.6 3.6 3.7 3.6 140 3.6 3.6 3.6 3.7 3.6 150 3.7 3.7 3.7 3.8 3.7 160 3.7 3.7 3.7 3.7 3.7 170 3.8 3.8 3.8 3.8 3.8 Table A.1 (continued) Δ/km R11 R12 R13 R14 R15 180 3.8 3.7 3.8 3.8 3.8 190 3.9 3.8 3.9 3.9 3.9 200 3.9 3.9 3.9 3.9 3.9 210 3.9 4.0 3.9 4.0 3.9 220 3.9 4.0 3.9 4.0 4.0 230 4.0 4.1 4.0 4.1 4.0 240 4.1 4.1 4.0 4.1 4.0 250 4.1 4.2 4.0 4.1 4.1 260 4.1 4.2 4.1 4.1 4.1 270 4.2 4.2 4.2 4.2 4.2 280 4.2 4.3 4.1 4.1 4.1 290 4.3 4.4 4.2 4.2 4.2 4.2 300 4.2 4.4 4.3 4.2 4.2 310 4.3 4.5 4.4 4.3 4.4 320 4.3 4.4 4.4 4.3 4.4 4.4 330 4.4 4.5 4.5 4.4 4.4 340 4.4 4.5 4.5 4.4 4.4 350 4.4 4.5 4.5 4.5 4.5 360 4.5 4.6 4.5 4.5 4.5 370 4.5 4.6 4.5 4.4 4.5 380 4.5 4.6 4.6 4.5 4.5 390 4.5 4.6 4.6 4.5 4.5 400 4.6 4.7 4.7 4.5 4.6 420 4.6 4.7 4.7 4.6 4.7 430 4.6 4.7 4.7 4.7 4.7 440 4.6 4.7 4.8 4.8 4.8 450 4.6 4.7 4.8 4.8 4.8 460 4.6 4.7 4.8 4.8 4.8 470 4.7 4.7 4.8 4.8 4.8 500 4.8 4.7 4.8 4.8 4.8 Table A.1 (continued) Δ/km R11 R12 R13 R14 R15 510 4.8 4.8 4.9 4.9 4.9 530 4.8 4.8 4.9 4.9 4.9 540 4.8 4.9 4.9 4.9 4.9 550 4.8 4.8 4.9 4.9 4.9 560 4.9 4.9 4.9 4.9 4.9 570 4.8 4.9 4.9 4.9 4.9 580 4.9 4.9 4.9 4.9 4.9 600 4.9 4.9 4.9 4.9 4.9 610 5.0 5.0 5.0 5.0 5.0 620 5.0 5.0 5.0 5.0 5.0 650 5.1 5.1 5.1 5.1 5.1 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3

Appendix B

(Normative appendix) Earthquake Instrument Parameters and Transfer Function B.1 DD-1 short-period seismograph B.1.1 Instrument parameters Instrument parameters include. a) Pickup device inherent period. T1 = 1.0s; b) shock absorber damping constant. D1 = 0.45; c) pen pen inherent period. T3 = 0.05s; d) Record pen damping constant. D3 = 0.707. B.1.2 Transfer function The normalized transfer function of the DD-1 short-period seismograph to the geostationary displacement response is. H1 (s) = s3 s2 5.655s 39.48 () s 4.545 () · 15791 s2 177.7s 15791 (B.1) Where. s = iω; ω = 2πf; i = -1; f - frequency in Hertz (Hz). B.2 base type (SK) long periodic seismograph B.2.1 Instrument parameters Instrument parameters include. a) Pickup device inherent period. T1 = 12.5s; b) shock absorber damping constant. D1 = 0.45; c) Current meter inherent period. T2 = 1.2s; d) galvanometer damping constant. D2 = 5.0; e) Coupling coefficient. σ2 = 0.1 (horizontal), σ2 = 0.3 (vertical). B.2.2 Transfer function The normalized transfer function of the horizontal to ground displacement is. H (s) = s2 (s2 0.4472s 0.2693) · 52.36s (s2 52.36s 25.72) (B.2) The normalized transfer function of the vertical-to-ground displacement is. H (s) = s2 (s2 0.4167s 0.2693) · 52.40s (s2 52.40s 22.10) (B.3) Where. s = iω; ω = 2πf; i = -1; f - frequency in Hertz (Hz). Appendix C. (Normative appendix) Seismic surface wave period values for different epicentral distances The periodicity of the seismic surface wave used in different epicentral distances is shown in Table C.1. Table C.1 Seismic surface wave period values for different epicentral distances Δ/(°) T/s Δ/(°) T/s Δ/(°) T/s 2 3 ~ 6 20 9 ~ 14 70 14 ~ 22 4 4 ~ 7 25 9 ~ 16 80 16 ~ 22 6 5 ~ 8 30 10 ~ 16 90 16 ~ 22 8 6 ~ 9 40 12 ~ 18 100 16 ~ 25 10 7 ~ 10 50 12 ~ 20 110 17 ~ 25 15 8 ~ 12 60 14 ~ 20 130 18 ~ 25

Appendix D

(Normative appendix) Q (Δ, h) value table The Q (Δ, h) values for calculating the short-period bulk wave magnitude mb and the broadband band-wave magnitude mB (BB) are shown in Table D.1. Table D.1 Q (Δ, h) values table Δ) h/km 0.0 25 50 75 100 150.200 250 300 350 400 450 500 550 600 650 700 5 5.9 5.9 5.9 5.9 5.9 6.0 6.1 6.1 5.9 5.9 6.0 6.1 6.2 6.2 6.2 6.0 5.8 10 6.0 6.0 6.0 6.0 6.0 6.1 6.2 6.2 6.0 6.0 6.1 6.2 6.3 6.3 6.3 6.1 5.9 20 6.1 6.1 6.1 6.1 6.1 6.2 6.3 6.3 6.1 6.1 6.2 6.3 6.4 6.4 6.4 6.2 6.0 21 6.1 6.2 6.1 6.1 6.1 6.2 6.3 6.3 6.1 6.1 6.2 6.3 6.4 6.4 6.4 6.2 6.0 22 6.2 6.2 6.2 6.2 6.1 6.2 6.3 6.3 6.1 6.1 6.2 6.3 6.4 6.4 6.4 6.3 6.1 23 6.3 6.3 6.2 6.2 6.1 6.2 6.4 6.3 6.2 6.1 6.2 6.3 6.4 6.4 6.4 6.3 6.1 24 6.4 6.3 6.3 6.2 6.2 6.3 6.4 6.3 6.2 6.1 6.2 6.3 6.3 6.4 6.4 6.4 6.1 25 6.5 6.4 6.3 6.2 6.2 6.3 6.4 6.3 6.2 6.1 6.2 6.3 6.3 6.4 6.4 6.4 6.2 26 6.5 6.4 6.3 6.3 6.3 6.4 6.5 6.4 6.2 6.1 6.2 6.2 6.3 6.4 6.4 6.4 6.2 27 6.5 6.4 6.4 6.3 6.3 6.4 6.5 6.4 6.2 6.1 6.2 6.2 6.3 6.4 6.4 6.4 6.3 28 6.6 6.5 6.4 6.4 6.4 6.5 6.5 6.4 6.3 6.1 6.1 6.2 6.3 6.4 6.4 6.4 6.3 29 6.6 6.5 6.4 6.4 6.4 6.5 6.5 6.4 6.3 6.1 6.1 6.2 6.3 6.4 6.4 6.4 6.3 30 6.6 6.6 6.5 6.5 6.5 6.5 6.5 6.4 6.3 6.1 6.1 6.2 6.3 6.4 6.4 6.4 6.3 31 6.7 6.6 6.5 6.5 6.5 6.5 6.5 6.4 6.3 6.1 6.1 6.2 6.3 6.4 6.4 6.4 6.3 32 6.7 6.7 6.6 6.6 6.5 6.6 6.4 6.4 6.3 6.1 6.1 6.2 6.3 6.4 6.4 6.4 6.4 33 6.7 6.7 6.6 6.6 6.6 6.5 6.4 6.4 6.3 6.1 6.1 6.2 6.3 6.4 6.4 6.4 6.4 34 6.7 6.7 6.7 6.7 6.6 6.5 6.4 6.4 6.3 6.1 6.1 6.2 6.3 6.4 6.4 6.4 6.3 35 6.6 6.7 6.7 6.7 6.7 6.5 6.4 6.3 6.3 6.1 6.1 6.2 6.3 6.4 6...

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