Michoacan Mexico 1985 (ERNAL)

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Event ID
198509191317
Event name
Michoacan
Country
Mexico
Epicentral coordinates (long/lat)
POINT(-102.53 18.19)
WKT GIS format
GEMECD contributing partner
ERNAL
Event narrative

The Mw 8.1 Michoacan earthquake occurred in the state of Michoacán, Mexico, at 13:17 UTC (07:17 a.m., local time) on 19 September 1985. The epicenter of the event was located in the subduction zone of the Pacific Ocean, in the coast of the Michoacán state and was felt in many parts of Mexico, mainly in Mexico City. The earthquake exposed the high seismic risk in the soft soil area of Mexico City, located over 400 km from the epicenter. The number of people killed by the earthquake was at least 9,500; the number of injured were about 30,000; more than 150,000 people were left homeless. The estimate of direct economic losses for the earthquake was 3,589 million US dollars.

Date of occurrence (UTC)
1985-09-19
date
Time of occurrence (UTC)
13:17:47
time
Date of occurrence (local)
1985-09-19
date
Time of occurrence (local)
07:17:47
time
Day of the week (local)
Thursday
Magnitude
8.1
Magnitude units
Moment (Mw)
Focal depth
28
km
Overview data
Loss: Human Casualty
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People injured
30000
number
People injured: source
http://earthquake.usgs.gov/earthquakes/eqarchives/significant/sig_1985.php Wesernt washingtong University website: http://www.smate.wwu.edu/teched/geology/eq-Mexico.html#Images Consulted on 20 january
People injured: comment

According to different sources, the number of people injured was between 30000 to 50000.

People injured: status
Greater than

People seriously injured
1879
number
People seriously injured: source
http://cidbimena.desastres.hn/docum/ops/publicaciones/059/059.5.htm
People seriously injured: status
Greater than

People missing: status
N/A

People killed
9500
number
People killed: source
Diario critico (2008 ) "¿Más de 40 mil miertos en el sismo de 1985?" http://mexico.diariocritico.com/2008/Septiembre/noticias/99041/mas-de-40-mil-muertos-en-el-sismo-del-1985.html
People killed: comment

According to different sources, the number of people killed was between 9500 to 40000.

People killed: status
Greater than

People killed due to ground shaking: status
N/A

People dying post catastrophe due to shaking: status
N/A

Loss: Building damage
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Total number of buildings destroyed by shaking
1040
number
Total number of buildings destroyed by shaking: source
Meli, R. (1986). Evaluación de los efectos de los sismos de 1985 en los edificios de la ciudad de México (3 volúmenes y 7 anexos), Informe Interno DE/EST-V2/1, Instituto de Ingeniería, UNAM
Total number of buildings destroyed by shaking: comment

265 buildings collapsed and 775 severely damaged


Number of buildings damaged by shaking
3300
number
Number of buildings damaged by shaking: source
http://www.cenapred.gob.mx/es/Publicaciones/archivos/10112011Fasciculosismos.pdf

Number of dwellings destroyed by shaking
36000
number
Number of dwellings destroyed by shaking: source
http://www.cenapred.gob.mx/es/Publicaciones/archivos/10112011Fasciculosismos.pdf

Number of dwellings damaged by shaking
65000
number
Number of dwellings damaged by shaking: source
http://www.cenapred.gob.mx/es/Publicaciones/archivos/10112011Fasciculosismos.pdf

Loss: Socioeconomic
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People homeless
150000
number
People homeless: source
http://www.cenapred.gob.mx/es/Publicaciones/archivos/10112011Fasciculosismos.pdfWesernt washingtong University website: http://www.smate.wwu.edu/teched/geology/eq-Mexico.html#Images Consulted on 20 january
People homeless: comment

According to different sources, the number of people homeless was between 150000 to 250000.

People homeless: status
Greater than

Direct economic loss
3589
million US$
Direct economic loss: source
http://www.eclac.org/publicaciones/xml/9/33659/MexicoCap1b.pdf

Indirect economic loss
515
million US$
Indirect economic loss: source
Ordaz, M. and Zeballos, A. (2007). "Información para la Gestión del Riesgo de Desastres. Estudio de Caso en Cinco Paises: Méxcio" CEPAL http://www.eclac.org/publicaciones/xml/9/33659/MexicoCap1b.pdf

Insured loss
275
million US$
Insured loss: source
Munich Re

Demographics
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Total number of buildings: status
N/A