Mercallin.

Brit.

/məˈkali/, U.S.

/mərˈkɑli/

Origin: From a proper name. Etymon: proper name Mercalli.

Etymology: < the name of Giuseppe Mercalli (1850–1914), Italian geologist, who devised the scale in 1897.

Seismology.

I. Compounds.

1. attributive. Designating or relating to an arbitrary 12-point scale used to express the intensity of an earthquake at a particular place, with I representing a virtually imperceptible disturbance and XII indicating total destruction; esp. in Mercalli scale.Contrasted with the Richter scale, which measures the intrinsic magnitude of an earthquake.The scale proposed by Mercalli was modified by A. Sieberg in 1923 ( Erdbebenkunde 102–4), and again by H. O. Wood and F. Newman in 1931 (see quot.), when the acceleration limits for the grades were omitted and the defining observational phenomena regrouped. This 1931 scale was named the modified Mercalli scale.

ΚΠ

1921 C. Davison Man. Seismol. iii. 45 The Mercalli scale..is suitable for strong earthquakes and is adopted in Italy.

1927 C. Davison Founders Seismol. vi. 106 Mercalli found that the higher degrees of the Rossi-Forel scale were insufficient... His modification of that scale contains the germs of the Mercalli scale now so widely used.

1931 Bull. Seismol. Soc. Amer. 21 278 (heading) Modified Mercalli intensity scale of 1931. Adapted from Sieberg's Mercalli-Cancani scale, modified and condensed.

1933 Science 18 Aug. 148/1 In intensity it [sc. the Long Beach earthquake] reached VIII (possibly IX) on the Modified Mercalli Scale of 1931, which specifies twelve grades.

1952 Science 12 Dec. 645/1 The violence of shaking at a particular place is represented on the modified Mercalli scale, with the maximum figure XII indicating total destruction.

1972 Times 28 Nov. 5/2 The tremor (eight on the 12-point Mercalli scale) damaged many buildings in the old part of the city.

1976 Daily Colonist (Victoria, Brit. Columbia) 27 June 3/1 Geophysicists said it measured 6 on the 12-degree Mercalli scale and 4.2 on the open-end Richter scale.

1996 Independent on Sunday 1 Sept. (Review Suppl.) 47/3 The distance by which relics have been displaced and the damage they suffered indicate that the AD60 quake had an intensity of IX on the modified Mercalli scale.

II. Simple uses.

2. The Mercalli scale.

ΚΠ

1977 Science 14 Jan. 171/3 Because all the historical data are given in intensities, we used epicentral intensities (modified Mercalli) rather than magnitudes.

1982 T. R. Toppozada & D. L. Parke in E. W. Hart et al. Proc. Conf. Earthquake Hazards Eastern San Francisco Bay Area (Special Publ. Calif. Div. Mines & Geol. No. 62) 321 This generated an earthquake of Richter local magnitude 6.8 which toppled buildings at Hayward (Intensity IX Modified Mercalli).

1999 S. Rushdie Ground beneath her Feet (2000) xv. 471 The monster quake that hits the Pacific coast of Mexico..measures a full nine on the Richter scale, which is to say: as bad as it gets. Also, XII on the Modified Mercalli, meaning complete destruction.

This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022).

单词	mercalli
释义	Mercallin. Brit. /məˈkali/, U.S. /mərˈkɑli/ Origin: From a proper name. Etymon: proper name Mercalli. Etymology: < the name of Giuseppe Mercalli (1850–1914), Italian geologist, who devised the scale in 1897. Seismology. I. Compounds. 1. attributive. Designating or relating to an arbitrary 12-point scale used to express the intensity of an earthquake at a particular place, with I representing a virtually imperceptible disturbance and XII indicating total destruction; esp. in Mercalli scale.Contrasted with the Richter scale, which measures the intrinsic magnitude of an earthquake.The scale proposed by Mercalli was modified by A. Sieberg in 1923 ( Erdbebenkunde 102–4), and again by H. O. Wood and F. Newman in 1931 (see quot.), when the acceleration limits for the grades were omitted and the defining observational phenomena regrouped. This 1931 scale was named the modified Mercalli scale. ΚΠ 1921 C. Davison Man. Seismol. iii. 45 The Mercalli scale..is suitable for strong earthquakes and is adopted in Italy. 1927 C. Davison Founders Seismol. vi. 106 Mercalli found that the higher degrees of the Rossi-Forel scale were insufficient... His modification of that scale contains the germs of the Mercalli scale now so widely used. 1931 Bull. Seismol. Soc. Amer. 21 278 (heading) Modified Mercalli intensity scale of 1931. Adapted from Sieberg's Mercalli-Cancani scale, modified and condensed. 1933 Science 18 Aug. 148/1 In intensity it [sc. the Long Beach earthquake] reached VIII (possibly IX) on the Modified Mercalli Scale of 1931, which specifies twelve grades. 1952 Science 12 Dec. 645/1 The violence of shaking at a particular place is represented on the modified Mercalli scale, with the maximum figure XII indicating total destruction. 1972 Times 28 Nov. 5/2 The tremor (eight on the 12-point Mercalli scale) damaged many buildings in the old part of the city. 1976 Daily Colonist (Victoria, Brit. Columbia) 27 June 3/1 Geophysicists said it measured 6 on the 12-degree Mercalli scale and 4.2 on the open-end Richter scale. 1996 Independent on Sunday 1 Sept. (Review Suppl.) 47/3 The distance by which relics have been displaced and the damage they suffered indicate that the AD60 quake had an intensity of IX on the modified Mercalli scale. II. Simple uses. 2. The Mercalli scale. ΚΠ 1977 Science 14 Jan. 171/3 Because all the historical data are given in intensities, we used epicentral intensities (modified Mercalli) rather than magnitudes. 1982 T. R. Toppozada & D. L. Parke in E. W. Hart et al. Proc. Conf. Earthquake Hazards Eastern San Francisco Bay Area (Special Publ. Calif. Div. Mines & Geol. No. 62) 321 This generated an earthquake of Richter local magnitude 6.8 which toppled buildings at Hayward (Intensity IX Modified Mercalli). 1999 S. Rushdie Ground beneath her Feet (2000) xv. 471 The monster quake that hits the Pacific coast of Mexico..measures a full nine on the Richter scale, which is to say: as bad as it gets. Also, XII on the Modified Mercalli, meaning complete destruction. This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022). < n.1921
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