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Re-assessing the intensity values of Iranian earthquakes using EMS and ESI scales

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Abstract

Iran is a region with high seismicity but reliable seismometric networks were installed in this country only in the last decades. Hence, the analysis of macroseismic effects (seismic intensity) could be the only possible way for defining the parameters of most Iranian earthquakes. Various authors reported the intensity estimates of earthquakes in this region using different macroseismic scales. To apply modern methods of determining macroseismic parameters, intensity values need to be expressed in a uniform scale. In this study, we attempt such homogenization by considering all information we can find from the literature consisting of both descriptions of effects and intensity values to build a dataset of intensities for the Iran region as most complete as possible. We adopted the European Macroseismic Scale (EMS) as the reference scale as it is the most recent one and particularly detailed on building damage. We also considered the Environmental Seismic Intensity (ESI) scale in order to use information on environmental effects (ground deformation, landslides, liquefaction, etc.) that are poorly detailed by EMS. We compare our application of two scales based on a dataset of Iranian earthquakes for which we have descriptions of effects on both building (EMS) and environment (ESI), and found that, in about 80% of cases, assessed EMS and ESI intensities coincide one to other within one degree, that is the uncertainty which can be reasonably assumed for standard intensity estimates. In cases where we were not able to find the original descriptions of effects in literature and only intensity estimates reported in various scales, we convert these values by table of correspondence. In summary, we assessed intensities in a homogeneous scale for 512 Iranian earthquakes from 658 through 2013.

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Appendices

Appendix A

Table 8 Comparing different types of intensity scales

Appendix B

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  • Shokri, M.A., Eskandari, M., 2012, Report of Zahan earthquake 2 September 2012, South Khorasan, Seismotectonic and Seismology group, Geological survey of Iran.

  • Soleymani Azad, Mosavi, Dorzadeh, Darijani, Mohamadi Gol, Jorjandi, Bulorchi, 2013, Preliminary report of strong earthquake of 4 April 2013 with magnitude 7.8, Seismotectonic Department of Geological Survey of Iran.

  • Tajik, R., Eskandari, M., Oveisi, B., 2012, Report of Khaf earthquake 2 July 2012, Seismotectonic and Seismology group, Geological survey of Iran.

  • Tavakoli, Sh., Haeri, S.M. Eshghi, S., Alijani Moghadam, H., Preliminary Analysis Num. 1 on 21 June 1990 Manjil-Rudbar (Iran), 1990, International Institute of Earthquake Engineering and Seismology, N. 70–91-1 (in Persian).

  • The earthquake of Sirch (Chahar Farsakh) 28 July 1981, 1981, International Institute of Earthquake Engineering and Seismology (in Persian).

  • The earthquake on 21 June 1990 Manjil, 1990, Architecture and Urbanism college, Shahid Beheshti University (in Persian).

  • Zare M. and Memarian, H., The Iranian earthquake intensity database: 1975–2000, Engineering Geology for Developing Countries- Proceedings of 9th Congress of the International Association for Engineering Geology and the Environment. Durban, South Africa, 16–20 September 2002 - J. L. van Rooy and C. A. Jermy, editors.

  • Zare M. and Memarian, H., Macroseismic Intensity and Attenuation laws: A Study on the Intensities of the Iranian Earthquakes of 1975–2000, Fourth International Conference of Earthquake Engineering and Seismology, 12–14 May 2003 Tehran, Islamic Republic of Iran.

  • Zare, M., Ansari, A., Heydari, H., Shahvar, M.P.M., Daneshdust, M., Mahdian, M., Sinaiean, F., Farzanegan, E., and Mirzaei-Alavijeh, H., 2013, A Reconnaissance Report on two Iran, Makran Earthquakes, EERI.

Appendix C

Table 9 List of 37 earthquakes which have more complete information than the others

Appendix D

Table 10 List of 138 earthquakes which have descriptions used to assess their intensity values in both EMS and ESI scales

Appendix E

List of Iranian earthquakes with assessed intensity values in EMS-ESI scale (see main text);

The common information of earthquakes is based on Zare et al. (2014) and Shahvar et al. (2013) catalogs;

  • Date of earthquake (Y: Year; M: Month; D: Day).

  • *: Earthquake with only descriptions and without the reported intensity values.

For other earthquakes there are the reported intensity values at least in one of intensity scales.

  • Earthquake catalog information consists of;

Magnitudes (Mw), latitudes (Lat), and longitude (Lon) of earthquakes were presented using Zare et al. (2014) and Shahvar et al. (2013).

  • Intensity assessed in this study based on EMS, ESI, and EMS-ESI. All earthquakes have the intensity value in EMS-ESI scale, but EMS and ESI scale are re-assessed for the earthquakes which have descriptions on building damage and environmental effects.

  • Quality of estimation (Q) based on description and number of reported MDPs: A) with description as more complete as possible, for more than 15 MDPs; B) with description for 5–15 MDPs; C) with lowest intensity descriptions (for less than 5 MDPs); D) without MDP description but with the reported intensity values.

  • References numbers (Ref) are 1 for Ambraseys and Melville (1982), 2 for Ambraseys (2001), 3 for Zare and Memarian 2003, 4 for Berberian 2005, 5 for Berberian 1981. For recent earthquakes, web reports published by different centers are also considered: 6 for National Geoscience Database of Iran (NGDIR), 7 for Geological Survey of Iran (GSI), 8 for International Institute of Earthquake Engineering and Seismology (IIEES), 9 for Building & Housing Research Center (BHRC), 10 for Berberian 1976, 11 for Berberian 1977, and 12 for Berberian 2001.

Y

M

D

Lat

Lon

Mw

EMS

EMS-ESI

ESI

Q

Ref

658

30.50

47.80

4.4

IV

D

1

734

31.00

60.50

6.5

IX

D

1

743

35.30

52.20

7.1

IX

D

1

763

33.30

59.30

7.5

XI

XI

D

1

805

12

2

29.50

60.50

6.9

X

D

1

815

29.50

60.50

6.9

X

D

1

819

6

36.40

65.40

7.5

IX

IX

IX

D

1

840

7

35.20

60.40

6.5

VIII

D

1

840

31.30

48.80

6.5

VIII

VIII

D

1

849

34.30

62.20

5.3

VII

VII

D

1, 5

855

35.60

51.50

7.0

VIII

IX

IX

D

1

856

12

22

36.20

54.30

7.8

X

X

IX

B

1

858

38.10

46.30

6.0

IX

IX

D

1, 5

859

33.20

44.60

7.4

VII

VIII

D

1

863

2

13

40.00

44.60

5.2

IX

IX

D

1

864

1

35.70

51.00

5.3

VIII

VIII

D

1

872

6

22

33.20

47.20

6.8

VIII

IX

IX

B

1, 5

874

11

37.20

55.20

6.0

IX

D

1, 5

881

10

33.30

44.40

4.4

IV

D

1

893

12

24

40.00

44.60

6.3

IX

IX

VIII

C

1

902

6

33.30

44.40

4.4

V

V

D

1

912

5

32.00

44.40

5.1

VII

D

1

943

8

37.60

57.00

7.6

X

X

D

1

956

34.80

48.10

5.3

VIII

VIII

VIII

C

1

958

2

23

36.00

51.10

7.7

XI

XI

XI

B

1

958

4

34.50

45.90

6.4

IX

IX

IX

C

1, 5

973

9

32.20

46.30

5.1

VI

D

1

977

11

33.30

44.40

4.4

V

V

D

1

978

6

17

27.70

52.30

5.3

VIII

VIII

D

1, 5

1008

4

27

34.60

47.40

6.5

XI

XI

D

1

1008

27.70

52.30

6.5

VIII

D

1, 5

1042

11

4

38.10

46.30

7.6

IX

IX

D

1, 5

1052

6

2

36.20

57.70

7.0

IX

IX

IX

C

1, 5

1058

12

8

34.30

44.70

6.4

IX

VIII

IX

C

1

1063

12

32.20

46.30

4.4

V

V

D

1

1066

5

33.90

59.20

6.5

XI

XI

IX

C

1

1072

1

20

33.30

44.40

6.0

IV

D

1

1085

5

30.70

50.30

5.8

VIII

VIII

D

1

1087

11

34.80

48.50

5.9

VIII

VIII

D

1

1094

2

33.30

44.40

4.4

V

V

D

1

1102

2

28

34.40

62.20

6.1

VIII

VIII

D

1

1102

36.30

54.10

5.1

VI

D

1

1107

9

34.60

47.40

6.5

IX

D

1

1119

12

10

35.70

49.90

6.5

VIII

VIII

D

1, 5

1127

36.30

53.60

6.8

X

X

X

C

1

1130

2

27

33.60

45.70

6.8

VIII

VIII

IX

C

1

1135

3

33.30

44.40

6.4

IV

D

1

1135

7

25

36.10

45.90

6.1

IX

IX

IX

C

1

1135

8

13

36.10

45.90

6.4

VII

VIII

IX

D

1

1144

5

29

33.30

44.40

4.4

V

V

D

1

1145

36.20

58.80

5.3

VIII

D

1

1150

4

1

34.50

45.90

5.9

IX

IX

IX

C

1, 5

1177

5

35.70

50.70

7.1

X

X

IX

B

1

1179

4

29

36.50

44.10

6.6

X

IX

IX

B

1

1191

34.80

48.50

5.1

V

V

D

1

1194

3

32.00

44.30

5.0

VII

VIII

VIII

C

1

1209

36.40

58.70

7.5

XI

XI

D

1

1226

11

18

35.30

46.00

6.5

X

IX

IX

C

1

1238

34.30

58.70

5.3

VIII

D

1, 5

1251

36.20

58.80

5.3

VIII

VIII

D

1

1252

33.30

44.40

4.4

IV

D

1

1270

10

7

36.20

58.80

7.0

IX

IX

C

1, 5

1273

1

18

36.20

58.80

7.1

VIII

VIII

D

1

1301

36.10

53.20

6.7

X

X

D

1

1304

11

7

38.50

45.50

6.7

VII

VIII

VIII

C

1, 5

1310

35.60

46.10

5.3

VIII

VIII

D

1

1316

1

5

33.50

49.40

6.2

XI

XI

VIII

C

1

1319

39.10

44.50

6.3

VIII

VIII

D

1

1336

10

21

34.70

59.70

7.6

IX

IX

C

1

1344

32.90

52.30

5.7

VIII

VIII

VIII

C

1

1361

26.90

56.20

5.3

VII

VII

D

1

1364

2

10

26.90

56.20

5.3

IX

IX

IX

C

1

1389

2

36.20

58.80

7.6

XI

XI

D

1, 5

1400

27.70

54.30

5.3

VIII

VIII

D

1, 5

1405

11

23

36.20

58.80

7.5

XI

XI

D

1, 5

1406

11

29

39.40

46.20

5.1

V

V

D

1

1428

35.90

63.80

6.5

VIII

VIII

D

1

1430

32.20

46.40

5.3

VII

VIII

D

1

1430

34.50

48.00

5.9

VIII

D

1

1436

37.20

55.20

5.3

VIII

VIII

D

1

1440

28.40

53.10

7.1

IX

IX

D

1, 5

1459

31.10

52.10

6.6

VI

VIII

VIII

C

5

1470

37.10

54.60

5.9

VII

VIII

VIII

C

1

1483

2

18

24.90

57.90

7.7

VIII

IX

IX

C

1

1485

8

15

36.70

50.50

7.2

X

X

IX

B

1

1493

1

10

33.00

59.80

7.0

X

X

IX

C

1, 5, 10

1497

27.20

56.30

6.5

XI

XI

D

1

1498

37.20

55.20

6.5

VIII

VIII

D

1

1503

37.40

43.80

6.9

IX

IX

IX

C

1

1506

29.60

52.50

5.1

VIII

VIII

D

1

1549

2

15

33.70

60.00

6.7

XI

XI

IX

C

1

1550

37.80

46.00

5.8

VII

VIII

VIII

C

1, 5

1567

39.00

47.20

5.4

VIII

VIII

D

1

1591

29.80

52.40

5.9

VIII

VIII

VIII

C

1

1593

9

27.70

54.30

6.1

XI

XI

IX

C

1

1593

37.80

47.50

6.5

X

XI

XI

C

1

1608

4

20

36.40

50.50

7.6

IX

IX

IX

B

1

1619

5

35.10

58.90

6.5

X

X

D

1

1621

5

21

37.40

47.70

4.4

IV

D

1

1622

10

4

27.10

56.40

5.8

VIII

VIII

VIII

C

1

1622

39.60

45.40

4.4

IV

D

1

1623

29.90

52.90

5.8

VIII

IX

D

1

1641

2

5

37.90

46.10

6.8

X

XI

IX

B

1, 5

1659

39.40

46.30

5.1

VII

VII

D

1

1665

37.70

52.10

6.5

VIII

VIII

D

1

1666

32.10

50.50

6.5

IX

IX

IX

C

1, 5

1673

7

30

36.30

59.30

6.6

X

X

IX

C

1, 5

1677

27.90

54.20

6.4

IX

IX

IX

C

1, 5

1678

2

3

37.20

50.00

6.5

X

X

D

1, 5

1678

34.30

58.70

6.5

XI

XI

D

1, 5

1679

6

4

40.20

44.60

6.2

IX

IX

VIII

B

1

1687

4

36.30

59.60

5.8

VII

VIII

D

1, 5

1687

36.30

52.60

6.5

X

X

D

1

1695

5

11

36.80

57.00

7.0

XI

XI

IX

C

1, 5

1696

4

14

39.10

43.90

7.1

XI

XI

IX

C

1

1703

26.60

54.90

6.8

VII

VIII

VIII

C

1

1705

30.50

47.80

6.8

V

V

D

1

1709

37.30

49.60

4.4

IV

D

1

1713

37.30

49.60

4.4

IV

D

1

1714

36.20

44.00

4.4

IV

D

1

1715

3

8

38.40

43.90

6.6

X

X

IX

B

1, 5

1716

1

23

40.20

44.50

4.4

IV

D

1

1717

3

12

38.10

46.30

5.9

VIII

VIII

D

1

1720

38.10

46.30

4.4

IV

D

1

1721

4

26

37.90

46.70

7.7

IX

IX

IX

C

1, 5

1752

29.60

52.50

5.8

IV

D

1

1755

6

7

34.00

51.40

5.9

IX

IX

D

1

1759

11

13

39.20

45.40

7.2

IV

D

1

1765

4

23

29.60

52.50

5.1

VII

VII

D

1

1766

27.70

54.30

5.8

VIII

VIII

D

1

1778

12

15

34.00

51.30

6.2

X

X

IX

B

1

1780

1

8

38.20

46.00

7.6

XI

XI

XI

B

1

1784

3

1

29.50

52.40

7.5

V

V

D

1

1786

10

38.30

45.60

6.3

IX

IX

VIII

B

1

1802

35.60

45.40

5.8

VIII

D

1

1803

36.33

48.95

5.3

VIII

VIII

D

1

1804

36.30

57.20

4.4

VIII

VIII

VIII

C

1

1805

36.20

52.40

5.0

IX

IX

VIII

C

1

1806

5

38.10

46.30

5.1

VI

D

1

1806

29.00

50.80

5.1

VI

D

1

1807

7

11

38.30

45.20

5.8

X

X

VIII

C

1

1808

2

23

28.50

53.60

5.8

VIII

D

1

1808

6

26

35.30

54.50

6.6

VIII

VIII

VIII

C

1

1808

6

38.50

44.90

5.8

VIII

VII

D

1

1808

10

9

36.20

52.40

5.9

IV

IX

D

1

1808

12

16

36.40

50.30

5.9

IX

IX

VIII

C

1

1809

36.30

52.50

6.5

VIII

IX

IX

B

1

1810

38.00

57.20

6.5

X

X

D

1

1812

5

14

38.10

46.30

4.4

IV

D

1

1812

6

23

38.10

46.30

4.4

IV

D

1

1812

38.90

45.60

5.1

VIII

VIII

D

1

1812

29.80

52.40

5.8

VIII

VIII

D

1

1815

6

35.90

52.20

5.1

VII

VII

D

1

1819

1

38.00

46.50

5.1

VIII

VIII

D

1

1820

6

38.10

46.30

4.4

IV

D

1

1823

12

38.10

46.30

4.4

IV

D

1

1824

6

2

29.70

51.60

6.4

X

X

VIII

B

1

1824

6

25

29.80

52.40

6.4

IX

IX

IX

B

1

1824

8

28

29.80

52.40

5.1

VI

D

1

1824

12

30

29.80

52.40

4.4

IV

D

1

1825

10

36.10

52.60

6.7

VII

VIII

D

1

1825

36.10

52.60

6.7

IX

IX

IX

C

1

1827

33.20

46.10

5.8

VIII

VIII

VIII

C

1

1828

8

14

39.80

46.70

4.4

IV

D

1

1829

3

26.70

55.30

5.1

VI

D

1

1829

4

24

38.50

44.90

4.4

IV

D

1

1830

3

27

35.70

52.50

7.1

XI

XI

IX

B

1

1830

4

6

35.90

52.60

6.3

VIII

D

1

1831

38.10

46.30

4.4

IV

D

1

1832

12

8

38.70

48.80

4.4

IV

D

1

1833

37.30

58.10

6.2

IX

IX

VIII

C

1

1834

39.70

43.70

6.3

IX

IX

VIII

C

1

1837

6

38.20

44.80

6.8

VII

VIII

VIII

C

1

1838

29.60

59.90

6.9

X

X

IX

B

1

1840

1

22

38.70

48.80

4.4

IV

VII

D

1

1840

7

2

39.50

43.90

7.5

X

X

IX

A

1

1843

4

18

38.70

44.90

5.9

VIII

VIII

VIII

C

1

1844

5

12

33.60

51.40

6.4

XI

XI

IX

B

1

1844

5

13

37.40

48.00

6.9

XI

XI

IX

B

1

1845

7

9

38.40

45.50

5.8

VIII

VIII

D

1

1849

27.70

57.60

5.8

VIII

D

1

1851

4

19

25.10

62.30

5.8

VIII

VIII

D

1

1851

6

36.80

58.40

6.9

IX

IX

IX

C

1

1852

4

25

35.90

54.30

6.2

VIII

VIII

D

1

1853

5

5

29.60

52.50

6.5

X

X

VIII

C

1

1853

6

5

31.30

51.90

5.5

IX

VIII

D

1

1853

6

11

32.60

50.30

5.5

VIII

VIII

D

1

1854

11

30.50

57.30

5.8

IX

IX

D

1, 5

1856

10

4

38.20

46.50

4.4

V

VII

D

1

1857

9

6

38.30

45.40

6.8

VIII

VIII

D

1

1859

6

4

37.70

47.10

6.8

VIII

VIII

D

1

1861

2

28

39.20

47.90

5.8

VIII

VIII

D

1

1861

5

24

39.40

47.50

6.0

IX

IX

D

1

1862

12

19

39.30

47.80

5.6

IX

IX

D

1

1862

12

21

29.50

52.50

6.2

VIII

IX

IX

C

1

1863

12

30

38.20

48.60

6.1

X

X

IX

B

1

1864

1

17

30.60

57.00

6.0

VIII

VIII

VIII

C

1, 5

1864

12

7

33.30

45.90

6.4

IX

IX

D

1

1865

6

29.60

53.10

6.0

VIII

VIII

D

1

1865

27.20

53.10

5.6

VIII

VIII

D

1

1868

3

18

39.60

47.60

6.0

IX

IX

D

1

1871

8

4

30.60

57.00

5.8

VIII

VIII

D

1

1871

12

23

37.40

58.40

7.2

X

X

VIII

B

1

1872

6

34.70

47.70

6.1

IX

IX

D

1

1874

2

31.90

50.80

4.4

VIII

D

1

1875

3

21

30.50

50.50

5.7

IX

IX

D

1

1875

5

31.20

56.30

6.0

IX

IX

VIII

C

1, 5

1876

9

28

33.10

49.70

5.8

IX

VIII

D

1

1876

10

20

35.80

49.80

5.7

IX

VIII

D

1

1877

30.10

57.60

5.6

VIII

VIII

D

1, 5

1879

3

22

37.80

47.90

6.7

XI

XI

IX

A

1, 5, 10

1880

7

4

36.50

47.50

5.6

X

X

VIII

C

1

1880

8

27.10

54.10

5.8

VIII

VIII

D

1

1880

32.00

50.70

5.8

VIII

VIII

D

1, 5

1883

4

28

37.00

56.20

5.8

VIII

IX

D

1

1883

5

3

37.90

47.20

6.2

IX

IX

D

1

1883

10

16

27.70

52.30

5.8

IX

IX

D

1

1884

5

19

26.90

56.00

5.8

IX

IX

VIII

C

1

1890

2

7

34.20

51.30

5.8

VIII

VII

D

1

1890

3

25

28.80

53.50

6.4

IX

IX

D

1

1890

7

11

36.60

54.60

7.2

X

X

IX

B

1, 5

1891

12

14

29.90

51.60

5.8

VIII

VIII

D

1

1892

8

15

29.10

52.70

5.8

VIII

D

1

1893

11

17

37.00

58.40

7.1

X

X

X

B

1

1894

2

26

29.50

53.30

5.9

X

X

VIII

C

1

1895

1

17

37.10

58.40

6.8

X

X

IX

B

1

1895

7

8

39.90

53.70

7.5

X

X

D

1

1895

34.20

51.30

5.8

VIII

VII

D

1

1896

1

4

37.80

48.40

6.7

X

X

IX

B

5

1897

1

10

26.90

56.00

6.4

IX

IX

D

1

1897

5

22

31.30

56.30

5.5

VIII

VIII

D

1, 5

1897

5

27

30.60

57.00

5.7

IX

IX

VIII

C

1, 4

1898

1

15

36.60

54.70

5.8

VIII

VIII

D

1

1900

2

24

38.45

44.87

5.4

IX

IX

VIII

B

1

1900

31.85

47.16

5.8

VIII

D

1

1901

5

20

36.39

50.48

5.4

VIII

VIII

D

1

1902

7

9

27.00

56.00

6.4

VIII

C

1, 10

1903

2

9

36.58

47.65

5.8

VIII

IX

D

1

1903

3

22

35.00

60.00

6.2

IX

D

1

1903

6

24

39.00

49.00

5.9

VIII

VIII

D

1

1903

9

25

34.00

58.00

5.9

IX

IX

IX

B

1, 5

1904

11

9

36.94

59.77

6.4

IX

IX

D

1

1905

1

9

38.00

46.00

6.2

IX

IX

D

1

1905

4

25

27.67

56.03

5.8

VIII

IX

C

1, 10

1905

6

19

29.89

59.98

6.0

VIII

D

1

1907

4

17

37.74

57.85

5.8

VIII

D

1

1907

7

4

27.00

55.00

5.7

IV

D

1

1908

7

26

34.59

61.49

5.3

VIII

VIII

D

1

1909

1

23

33.00

53.00

7.4

IX

X

X

B

1, 2, 5

1909

10

27

30.09

57.58

5.5

VIII

VII

D

1, 5

1911

4

18

32.00

56.00

6.2

XI

XI

IX

B

1, 2, 4

1911

4

29

30.36

57.58

5.6

VIII

D

1, 5

1911

9

13

27.67

54.44

5.5

VIII

D

1

1913

3

24

27.60

53.91

5.8

VIII

VIII

D

1

1914

2

6

29.50

65.00

6.0

VIII

VIII

D

1

1917

1

15

33.50

46.50

6.3

IX

IX

D

1

1917

8

29

37.37

58.05

5.7

VIII

VIII

D

1

1917

10

24

36.94

54.31

5.3

VIII

VIII

D

1

1917

11

28

37.18

57.88

5.9

VIII

VIII

D

1

1918

3

24

34.50

57.10

6.3

IX

D

1, 5

1919

5

12

36.19

44.01

5.9

VIII

D

1, 5

1919

10

24

27.50

63.60

5.8

VIII

D

1

1922

3

21

33.00

50.00

5.7

VIII

D

5

1923

5

25

34.63

61.49

6.0

XI

XI

VIII

B

1, 5

1923

9

17

37.97

56.50

6.3

IX

IX

IX

B

1, 2

1923

9

22

29.20

56.90

6.7

XI

XI

IX

A

1, 2, 10

1923

11

29

31.20

61.60

5.6

VIII

D

1

1924

2

19

38.59

48.50

5.8

IX

IX

D

1, 5

1925

12

18

28.79

51.35

5.7

VIII

D

5

1927

7

22

34.72

53.64

6.3

IX

IX

IX

B

1

1927

11

12

32.39

46.97

6.1

VIII

VIII

D

1

1928

3

8

31.45

60.16

5.2

VIII

VIII

D

1, 5

1929

5

1

37.86

57.65

7.3

XI

XI

XI

A

1, 2, 5, 10

1929

7

13

37.20

58.20

6.0

VIII

D

2, 5

1929

7

15

32.06

49.60

6.1

IX

IX

IX

B

1, 2, 5

1930

5

6

38.15

44.65

7.1

XI

XI

XI

A

1, 2, 5, 10

1930

10

2

35.86

52.08

5.6

X

X

VIII

B

1, 5

1931

4

27

39.34

45.97

6.4

IX

IX

D

1

1933

10

5

34.58

57.31

6.0

VIII

IX

D

1

1933

11

28

32.10

56.02

6.2

XI

XI

X

A

1, 2, 5

1934

1

2

30.08

57.56

5.8

VIII

D

1, 5

1934

2

22

38.23

45.04

6.2

VII

VIII

D

1

1934

3

13

30.50

51.70

5.2

VIII

D

5

1934

10

29

40.66

49.01

5.9

VII

IX

D

1

1935

3

5

35.91

53.21

6.0

IX

IX

VIII

B

1

1935

4

11

36.59

53.61

6.3

IX

IX

IX

A

1, 2

1936

6

30

33.67

60.45

6.0

VIII

IX

IX

C

1, 2, 5

1938

1

26

33.12

45.87

5.8

VIII

VIII

D

1

1939

11

4

32.60

49.02

6.1

VII

VIII

D

1

1939

11

8

36.33

58.12

6.3

VIII

D

1

1940

5

4

35.91

58.51

6.4

VIII

VIII

D

1, 2, 5

1941

2

16

33.47

58.92

6.1

XI

XI

X

B

1, 2, 5

1944

7

23

30.50

55.00

5.5

VIII

VII

D

1

1945

11

27

25.02

63.47

8.1

XI

XI

XI

A

1

1946

3

12

29.72

51.72

5.8

VIII

VIII

D

1

1946

7

27

35.76

45.97

5.8

VIII

D

1

1946

11

4

39.82

54.65

7.4

X

X

D

1

1947

8

5

25.06

63.44

6.9

IX

IX

D

1

1947

9

23

33.42

58.66

6.8

XI

XI

X

B

1, 2, 5

1948

6

18

37.49

57.73

5.8

VIII

VIII

D

1

1948

7

5

29.46

57.78

6.0

X

X

VIII

B

1, 2, 5

1948

10

5

37.79

58.44

7.1

X

IX

C

1, 2, 12

1949

4

24

27.22

56.42

6.3

VIII

B

1, 10

1950

1

19

27.29

53.04

5.9

IX

VIII

B

1

1950

5

9

38.34

58.41

6.1

VIII

IX

D

1

1951

12

30

28.34

57.21

6.0

VI

D

1

1953

1

15

31.30

56.90

5.7

IX

D

1

1953

2

12

35.40

55.08

6.5

X

X

X

B

1, 2, 5, 12

1955

11

24

41.35

44.10

4.2

V

D

5

1956

10

31

27.21

54.39

6.3

X

C

1, 2, 5

1957

7

2

36.14

52.70

7.0

XI

XI

IX

A

1, 2

1957

12

13

34.35

47.67

6.7

IX

IX

D

1, 2, 5, 11

1958

8

16

34.36

47.86

6.6

IX

IX

D

1, 2, 5, 12

1960

4

24

27.72

54.44

6.1

VIII

VIII

D

1, 5, 11

1961

4

6

27.80

56.70

6.0

VII

VIII

D

1

1961

6

11

27.90

54.53

6.5

IX

IX

D

1, 2

1962

4

1

33.39

58.87

5.7

IX

IX

IX

A

1

1962

9

1

35.59

49.85

7.2

XI

XI

XI

A

1, 2, 5, 12

1962

10

5

35.21

58.72

5.6

VI

D

5

1962

11

6

28.09

55.57

6.0

VIII

VIII

VIII

B

1, 5, 10

1963

3

24

34.37

47.80

6.0

VIII

VIII

D

1, 5, 12

1963

7

29

27.80

55.60

5.4

VIII

VIII

B

5, 10

1964

8

27

28.06

55.83

5.5

VIII

C

5

1964

12

22

28.20

56.94

6.1

VIII

D

1

1965

2

10

37.66

47.09

5.1

VIII

D

5

1965

6

21

28.14

55.99

5.7

VIII

VIII

VIII

C

1, 5

1966

9

18

27.86

54.30

5.9

VIII

VIII

D

1

1967

1

15

29.96

51.55

5.2

V

D

5

1968

4

29

39.24

44.23

5.5

IX

IX

VIII

A

1, 5, 11

1968

5

30

27.83

53.94

5.4

IX

IX

VIII

C

5

1968

6

23

39.20

45.30

4.3

VII

VII

C

5

1968

8

31

34.04

59.02

7.4

XI

XI

X

A

1, 2, 5

1968

9

1

34.10

58.28

6.4

X

X

IX

B

1, 5

1968

9

4

34.20

59.47

5.2

VII

D

5

1968

9

14

28.34

53.16

6.1

X

X

VIII

B

1, 2, 5

1968

11

15

37.60

58.50

5.5

VIII

VIII

VIII

C

1, 2

1969

1

3

37.12

57.90

5.6

IX

IX

IX

C

1, 5

1969

11

11

33.39

54.96

5.2

VII

D

5

1970

2

23

27.82

54.50

5.6

VII

VII

D

1

1970

7

30

37.85

55.94

6.6

VIII

VIII

VIII

B

1, 2, 5, 11

1970

10

3

33.94

47.34

5.1

V

D

5

1970

10

25

37.75

45.19

5.5

VIII

D

5

1971

2

14

36.58

55.63

5.9

VII

VIII

D

1, 5

1971

4

12

28.39

55.62

6.0

VIII

VIII

VIII

A

1, 10

1971

5

26

35.56

58.14

5.8

VIII

VIII

D

1

1971

8

27

30.12

50.73

5.0

VII

D

5

1971

9

8

29.10

60.04

5.5

VIII

VIII

A

1

1971

10

23

29.64

51.44

4.9

V

D

5

1971

11

8

27.07

54.46

5.6

VIII

VIII

VIII

C

14

1971

12

19

27.26

56.43

5.5

VIII

VIII

C

1

1972

4

10

28.39

52.78

6.9

XI

XI

XI

A

1, 2, 5, 10

1972

6

8

34.09

46.28

5.1

VII

D

5

1972

6

12

32.98

46.25

5.5

VII

D

5

1972

7

2

30.09

50.87

5.6

VIII

VIII

B

5, 10

1973

5

5

33.30

57.33

4.8

VI

D

5

1973

5

11

33.41

57.48

5.3

VII

VIII

D

5

1973

6

30

27.19

56.93

4.7

VII

VII

C

13

1973

8

28

31.58

50.80

4.9

VI

D

5

1973

11

11

30.53

53.00

5.6

VII

D

1, 5

1974

3

7

37.65

55.95

5.4

VII

D

5

1974

6

17

33.65

57.04

4.9

VI

D

5

1974

12

2

28.03

55.86

5.6

VII

VII

B

5, 10

1975

3

7

27.47

56.25

6.1

X

X

IX

A

1, 2, 3, 10

1975

5

9

30.20

52.07

5.0

VI

D

5

1975

9

1

33.34

49.10

5.1

VI

D

5, 3

1975

9

6

38.50

40.70

6.6

VIII

D

5

1975

9

21

41.10

46.90

4.3

VII

VII

C

5, 3, 11

1975

12

24

27.04

55.50

5.6

VIII

D

1

1976

2

15

32.07

49.04

4.6

V

D

5

1976

4

22

28.71

52.12

6.0

VIII

VIII

D

1

1976

7

27

40.35

49.04

5.0

VIII

VIII

C

11

1976

11

7

33.86

59.23

6.4

VIII

D

1, 2, 5, 3

1976

11

24

39.05

44.04

7.2

VIII

IX

D

1, 2, 5, 3

1977

2

14

27.55

53.12

4.6

V

D

5

1977

3

21

27.59

56.38

6.9

IX

IX

B

1, 2, 5, 3, 11

1977

4

6

31.99

50.70

6.0

X

X

VIII

A

1, 5, 3, 11

1977

5

26

29.70

51.11

4.9

VI

D

5

1977

7

14

26.90

53.61

5.0

V

D

5

1977

12

19

30.93

56.48

5.9

X

X

X

A

1, 5, 3, 11

1978

2

16

32.09

54.31

4.6

V

D

5

1978

6

14

38.02

56.27

5.0

VI

D

5

1978

9

16

33.39

57.43

7.4

XI

XI

XI

A

1, 2, 5, 3

1978

11

4

37.67

48.90

6.1

VIII

D

2

1978

12

14

32.14

49.65

6.1

VIII

D

5

1979

1

10

26.52

61.01

6.1

VIII

D

5

1979

1

16

33.90

59.47

6.7

IX

D

1, 3

1979

11

27

33.96

59.73

7.3

IX

X

X

A

1, 2, 5, 3

1979

12

7

34.15

59.80

5.0

VIII

D

2

1980

7

23

36.86

56.26

5.0

V

D

5

1980

12

3

37.13

50.43

5.3

VIII

D

3

1980

12

19

34.47

50.65

6.2

VIII

VIII

VIII

B

4

1981

7

28

29.98

57.77

7.0

X

X

IX

A

2, 4, 3

1981

8

9

36.92

55.29

5.1

IX

D

3

1982

10

25

35.08

52.31

4.8

VIII

 

C

13

1983

3

25

35.95

52.26

5.4

VIII

D

3

1983

5

28

32.59

48.58

5.7

V

D

3

1983

7

22

36.95

49.18

5.6

VIII

D

3

1984

4

20

34.19

58.43

4.9

V

D

3

1984

8

6

30.80

57.18

5.4

VII

D

3

1984

12

22

27.85

54.47

5.3

VI

D

3

1985

2

2

28.38

52.99

5.3

VIII

VIII

C

3

1985

6

22

29.57

61.23

5.3

VI

D

3

1985

8

7

27.84

53.04

5.6

VI

D

3

1985

10

29

36.90

54.90

6.2

VII

D

3

1986

3

25

26.70

54.82

5.1

VI

D

3

1986

4

29

37.90

49.11

5.1

IV

D

3

1986

5

2

28.02

53.30

5.6

VI

D

3

1986

7

12

29.96

51.58

5.8

VII

D

3

1986

10

6

26.64

54.60

5.1

VII

D

3

1986

12

20

29.99

51.62

5.6

VII

D

3

1987

4

11

31.61

56.08

5.2

VII

D

3

1987

4

22

30.18

57.55

4.3

V

D

3

1987

11

24

32.68

59.15

5.6

VI

D

3

1988

3

30

30.72

50.21

4.9

VIII

IX

VIII

A

3

1988

8

11

29.97

51.68

6.1

X

X

X

A

3

1988

12

6

29.95

51.65

5.6

VII

D

3

1989

1

1

27.09

54.19

4.9

V

D

3

1989

5

3

29.89

51.80

5.3

VIII

D

4

1989

5

27

30.17

50.92

6.0

VIII

D

3

1989

9

13

37.28

54.25

5.3

V

D

3

1989

10

1

30.91

51.41

5.4

VI

D

3

1989

11

4

30.57

57.57

5.2

IV

D

3

1989

11

20

29.89

57.72

5.9

VII

D

3

1990

1

20

35.83

52.95

5.9

VII

VII

A

3

1990

6

20

36.99

49.35

7.4

XI

XI

XI

A

2, 4, 3

1990

11

6

28.23

55.47

6.6

IX

IX

B

2, 3

1990

12

16

29.12

51.12

4.7

VI

D

3

1991

10

11

31.67

50.78

5.3

VII

D

3

1992

2

23

37.03

50.00

4.1

V

D

3

1992

3

4

31.57

50.75

5.1

IX

IX

A

4

1992

9

8

29.13

52.14

5.2

VII

VII

D

3

1993

1

6

29.31

52.02

5.4

VII

D

3

1993

1

27

32.08

60.08

5.2

VII

D

4

1993

3

29

28.00

52.74

5.2

V

D

3

1993

4

8

37.85

47.96

4.3

VII

D

3

1993

6

22

30.17

50.83

5.4

VII

D

4

1994

2

23

30.85

60.60

6.1

VIII

IX

IX

C

2, 3

1994

3

1

29.10

52.62

6.0

VII

VII

B

3

1994

3

30

28.96

52.80

5.4

VII

D

3

1994

4

30

29.02

52.58

4.3

VII

D

3

1994

6

20

28.97

52.61

5.9

X

X

X

C

3

1994

8

11

34.53

33.26

4.6

VI

D

3

1995

1

24

27.64

55.65

4.9

VIII

D

3

1995

5

27

38.92

48.93

4.9

IV

D

3

1995

9

4

29.84

57.43

4.7

V

D

3

1996

1

26

29.35

51.05

4.9

V

D

3

1996

5

24

28.85

54.57

5.0

VIII

D

3

1997

2

4

37.74

57.29

6.6

X

X

X

A

2, 3

1997

2

28

38.12

48.08

6.1

VIII

VIII

A

4

1997

5

10

33.88

59.82

7.0

XI

XI

XI

A

4, 3

1997

10

3

27.77

54.70

5.3

VII

D

3

1997

11

1

28.11

53.79

4.5

VII

D

3

1998

1

9

36.38

52.14

4.9

VI

D

3

1998

1

23

39.34

43.99

4.7

VI

D

3

1998

3

14

30.16

57.61

6.7

X

X

C

2, 3

1998

4

10

32.46

59.98

5.8

VII

D

3

1998

8

4

37.22

57.33

5.5

VI

D

3

1998

10

4

33.30

47.23

5.3

VIII

D

3

1998

10

18

28.54

54.18

4.5

VI

D

3

1998

11

13

27.80

53.64

5.4

VII

D

3

1998

11

23

38.30

45.14

4.8

IV

D

3

1998

12

10

27.85

53.56

4.9

V

D

3

1999

3

4

28.34

57.19

6.2

VIII

D

3

1999

5

6

29.50

51.88

6.2

X

X

VIII

A

3

1999

8

11

32.92

34.71

5.2

VII

VII

VII

B

4

1999

9

13

31.91

50.60

5.0

VI

D

3

1999

9

24

37.50

38.60

4.6

VII

D

3

1999

10

31

29.35

51.85

5.2

VI

VI

C

3

1999

11

8

35.73

61.21

5.5

VII

VII

B

3

1999

11

26

36.92

54.89

5.3

VII

D

3

2000

2

2

35.23

58.21

5.3

VII

VII

C

4

2000

3

28

35.28

58.22

4.9

VII

VII

C

15

2002

6

22

35.60

49.02

6.5

VIII

X

X

A

6, 8

2002

12

24

34.54

47.48

5.2

VII

VIII

A

6, 7

2003

7

10

28.33

54.16

5.7

VIII

VIII

B

8

2003

12

26

29.04

58.36

6.6

XI

XI

X

B

2, 3, 4, 8

2004

5

28

36.26

51.57

6.4

VII

VII

B

6, 8, 9

2004

7

4

27.98

56.51

4.1

VI

VI

C

7

2005

2

22

30.80

56.76

6.4

IX

X

X

A

6, 8, 9

2005

5

3

40.53

49.93

4.0

VII

VII

B

8

2005

10

20

31.59

50.56

4.9

VII

VII

B

6

2005

11

27

26.83

55.82

6

VIII

VIII

B

8, 9

2005

12

27

28.07

56.01

4.8

VII

VII

C

8

2006

3

25

27.57

55.87

5.5

VI

VI

C

8

2006

3

31

33.65

48.91

6.1

VIII

VIII

VIII

A

6, 8, 9

2007

6

18

28.39

52.69

4.1

VI

VI

C

8, 9

2007

11

20

31.62

49.95

4.9

VI

VI

C

8

2008

9

10

26.94

55.72

6.2

VII

VII

B

8

2009

10

5

31.86

49.49

5.2

VI

VI

C

8

2009

11

4

27.24

56.20

5.0

VII

VII

C

8

2010

7

20

26.99

53.84

5.6

VII

VII

B

7, 8

2010

7

30

35.20

59.23

5.8

VII

VII

C

7, 8

2010

8

11

37.85

57.15

4.7

VI

VI

D

8

2010

8

27

35.46

54.49

5.9

VIII

VIII

B

7, 8

2010

9

27

29.75

51.75

6

VIII

VIII

C

8

2011

1

6

30.18

51.70

5.4

VIII

VIII

C

8

2012

1

19

36.30

58.86

5.4

VII

VII

D

8

2012

2

27

31.43

56.78

5.2

VII

VII

C

8

2012

5

3

32.74

47.61

5.4

VII

VII

D

9

2012

7

1

34.56

59.86

5.3

VII

VII

B

7

2012

8

11

38.39

46.80

6.5

X

X

X

A

7, 8, 9, 12

2012

9

2

33.44

59.95

5.1

VI

VII

C

7

2012

12

5

33.49

59.55

5.8

VII

VII

D

9

2013

4

9

28.48

51.59

6.2

IX

IX

B

7, 8

2013

4

16

27.88

62.03

7.7

X

X

B

7, 8

2013

5

11

26.56

57.77

6.2

VIII

VIII

VIII

B

8

2013

5

14

26.73

57.62

4.0

VII

VII

D

7, 8

2013

11

24

34.24

45.57

5.3

VII

VII

C

7

2013

11

28

29.30

51.35

5.6

VII

VII

B

7, 8

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Amini, H., Zare, M. & Gasperini, P. Re-assessing the intensity values of Iranian earthquakes using EMS and ESI scales. Arab J Geosci 10, 504 (2017). https://doi.org/10.1007/s12517-017-3226-3

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  • DOI: https://doi.org/10.1007/s12517-017-3226-3

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