Reventador Ecuador 1987 (ERNAL)

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Event ID
198703060410
Event name
Reventador
Country
Ecuador
Epicentral coordinates (long/lat)
POINT(-77.787 0.082)
WKT GIS format
GEMECD contributing partner
ERNAL
Event narrative

Two earthquakes struck the northeast of Ecuador on March 5th 1987. The major one occurred at 11:10 in the evening (local time) and had a magnitude of 7.1 (Mw) and a focal depth of 17.1 km. The earthquakes occurred after a month of heavy rains and the epicenter was located near the active volcano “El Roncador”. The earthquake itself did not cause deaths, it were the mudslides and avalanches triggered by the ground shaking which caused the approximately 1000 deaths. A number over 800 buildings and over 3000 dwelling units collapsed due to the earthquake while over 1000 buildings and over 12000 dwelling units were damaged. The damage of the Trans-Ecuadorian Pipeline due to mudslides was of great importance because it represented the largest single pipeline loss in history.

Date of occurrence (UTC)
1987-03-06
date
Time of occurrence (UTC)
04:10:00
time
Date of occurrence (local)
1987-03-05
date
Time of occurrence (local)
23:10:00
time
Day of the week (local)
Thursday
Magnitude
7.1
Magnitude units
Moment (Mw)
Focal depth
17.1
km
Seismological data: source
USGS
Seismological data: comment

ShakeMap Atlas

Overview data
Loss: Human Casualty
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People injured: status
N/A

People seriously injured: status
N/A

People missing: source
Escuela Polítecnica Nacional del Ecuador, USAID, National Research Council. 1991. The March 5, 1987 Ecuador Earthquakes-Mass Wasting and Socioeconomic Effects. The National Academy Press: Washington D.C.
People missing: comment

The exact number is not known, but approximate estimates are around 1,000 dead or missing.

People missing: status
N/A

People killed: source
Escuela Polítecnica Nacional del Ecuador, USAID, National Research Council. 1991. The March 5, 1987 Ecuador Earthquakes-Mass Wasting and Socioeconomic Effects. The National Academy Press: Washington D.C.
People killed: comment

The exact number is not known, but approximate estimates are around 1,000 dead or missing.

People killed: status
N/A

People killed due to ground shaking
0
number
People killed due to ground shaking: source
Escuela Polítecnica Nacional del Ecuador, USAID, National Research Council. 1991. The March 5, 1987 Ecuador Earthquakes-Mass Wasting and Socioeconomic Effects. The National Academy Press: Washington D.C.
People killed due to ground shaking: comment

It is estimated that the 1,000 deaths were caused by land slides and/or consequantial floods. No deaths were reported due to the collapse of structures.


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

People missing due to tsunami
0
number
People killed due to tsunami
0
number
People missing due to fire following
0
number
People killed due to fire following
0
number
People missing due to slope failures: source
Escuela Polítecnica Nacional del Ecuador, USAID, National Research Council. 1991. The March 5, 1987 Ecuador Earthquakes-Mass Wasting and Socioeconomic Effects. The National Academy Press: Washington D.C.
People missing due to slope failures: comment

Estimates of the numbers of settlers that were killed or missing as a result of the earthquake vary considerably because there are no reliable data on how many people were living in the area affected by the landslides, and it is assumed that many bodies have not been recovered from the rivers.

People killed due to slope failures
1000
number
People killed due to slope failures: source
Escuela Polítecnica Nacional del Ecuador, USAID, National Research Council. 1991. The March 5, 1987 Ecuador Earthquakes-Mass Wasting and Socioeconomic Effects. The National Academy Press: Washington D.C.
Loss: Building damage
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Total number of buildings destroyed by shaking
818
number
Total number of buildings destroyed by shaking: source
Escuela Polítecnica Nacional del Ecuador, USAID, National Research Council. 1991. The March 5, 1987 Ecuador Earthquakes-Mass Wasting and Socioeconomic Effects. The National Academy Press: Washington D.C.
Total number of buildings destroyed by shaking: comment

This number correspond to the eastern part of the affected area: Baeza, Lumbaqui, El Chaco, Reventador, Lago Agrio, Diaz de Pineda


Number of buildings damaged by shaking
1158
number
Number of buildings damaged by shaking: source
Escuela Polítecnica Nacional del Ecuador, USAID, National Research Council. 1991. The March 5, 1987 Ecuador Earthquakes-Mass Wasting and Socioeconomic Effects. The National Academy Press: Washington D.C.
Number of buildings damaged by shaking: comment

This number correspond to the eastern part of the affected area: Baeza, Lumbaqui, El Chaco, Reventador, Lago Agrio, Diaz de Pineda


Number of dwellings destroyed by shaking
3042
number
Number of dwellings destroyed by shaking: source
Escuela Polítecnica Nacional del Ecuador, USAID, National Research Council. 1991. The March 5, 1987 Ecuador Earthquakes-Mass Wasting and Socioeconomic Effects. The National Academy Press: Washington D.C.

Number of dwellings damaged by shaking
12433
number
Number of dwellings damaged by shaking: source
Escuela Polítecnica Nacional del Ecuador, USAID, National Research Council. 1991. The March 5, 1987 Ecuador Earthquakes-Mass Wasting and Socioeconomic Effects. The National Academy Press: Washington D.C.

Loss: Socioeconomic
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People homeless
20000
number
People homeless: source
USGS PAGER-CAT, PDE

Direct economic loss
185
million US$
Direct economic loss: source
Dirección Nacional de Defensa Civil-Ecuador. (1988). Ecuador-Terremoto del 5 de marzo de 1987. Quito, Ecuador.
Direct economic loss: comment

Other estimate: 179.6 mill US$ (GFDRR)


Indirect economic loss
815
million US$
Indirect economic loss: source
Dirección Nacional de Defensa Civil-Ecuador. (1988). Ecuador-Terremoto del 5 de marzo de 1987. Quito, Ecuador.
Indirect economic loss: comment

Other estimate: 814.85 mill US$ (GFDRR)


Insured loss
0
million US$
Insured loss: source
Munich Re

Demographics
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Total number of buildings: status
N/A