1987 Ecuador earthquakes

The 1987 Ecuador earthquakes occurred over a six-hour period on March 6. The sequence of shocks measured 6.7, 7.1, and 6.0 on the moment magnitude scale. The main shock had a maximum Mercalli intensity of IX (Violent). The earthquakes were centered in Napo Province in northeast Ecuador; the epicenters were on the eastern slopes of the Andes, about 75 km ENE of Quito and 25 km north of Reventador Volcano. The earthquakes caused about 1,000 deaths. Four thousand people were missing and damage was estimated at US$1 billion.

1987 Ecuador earthquakes
1987 Ecuador earthquakes is located in Ecuador
Foreshock
Foreshock
Mainshock
Mainshock
UTC time1987-03-06 04:10:43
ISC event471340
USGS-ANSSComCat
Local dateMarch 5, 1987 (1987-03-05)
Local time23:10:43 ECT
Magnitude7.1 Mw [1]
Depth10 km (6.2 mi) [1]
Epicenter0.07°N 77.75°W / 0.07; -77.75
Total damage$1 billion [2]
Max. intensityIX (Violent) [3]
Foreshocks6.4 Mw March 6 at 01:54 [1]
Aftershocks6.0 Mw March 6 at 08:14 [1]
Casualties1,000 dead [4]
4,000 missing [4]
20,000–150,000 displaced [4]

See also

References

  1. ISC (19 January 2015), ISC-GEM Global Instrumental Earthquake Catalogue (1900–2009), Version 2.0, International Seismological Centre
  2. Bolton, P. A. (1991), "Local-level economic and social consequences", The March 5, 1987, Ecuador Earthquakes: Mass Wasting and Socioeconomic Effects, National Academies Press, p. 109, ISBN 978-0309044448
  3. Espinoza, A. F.; Egred, J.; Garciá-Lopez, M.; Crespo, E. (1991), "Intensity and damage distribution", The March 5, 1987, Ecuador Earthquakes: Mass Wasting and Socioeconomic Effects, National Academies Press, p. 42, ISBN 978-0309044448
  4. USGS (September 4, 2009), PAGER-CAT Earthquake Catalog, Version 2008_06.1, United States Geological Survey

Sources

  • Kawakatsu, H.; Cadena, G. P. (1991), "Focal Mechanisms of the March 6, 1987 Ecuador Earthquakes: CMT inversion with a first motion constraint", Journal of Physics of the Earth, 39 (4): 589–597, doi:10.4294/jpe1952.39.589
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