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1941 Colima earthquake

UTC time	1941-04-15 19:09:56
ISC event	900764
USGS-ANSS	ComCat
Local date	April 15, 1941 (1941-04-15)
Local time	13:09
Magnitude	7.7 Ms
Depth	35 km
Epicenter	18°51′N 102°56′W / 18.85°N 102.94°W / 18.85; -102.94
Areas affected	Mexico
Max. intensity	MMI X (Extreme)
Casualties	90 killed

The 1941 Colima earthquake occurred on April 15 at 19:09 UTC (13:09 local time). The epicenter was located in the State of Michoacán, Mexico.

The magnitude of this earthquake was put at M_s 7.7 or M_w 7.7. The intensities were X (Extreme) in Colima, VIII (Severe) in Manzanillo, and V (Moderate) in Mexico City. Ninety people were reported dead. The cathedral of Colima was destroyed. Many houses and public buildings in Colima, including the Federal Palace (Palacio federal) and the Hidalgo Theater (Teatro Hidalgo), were damaged. Of the 8,000 houses in the city of Colima, 900 or 2000 collapsed, according to different sources.

This earthquake was an interplate earthquake between the Cocos plate and the North American plate. It occurred in the Colima region of the Middle America Trench. This earthquake was very close to where the 1973 Colima earthquake occurred. From the locally recorded time intervals between the arrival of the S wave and the P wave (S−P times) and from the felt intensities, it is suggested that the rupture zone of this earthquake was larger than the 1973 earthquake and may have extended into the rupture zone of the 1985 Michoacán earthquake.

See also

• List of earthquakes in 1941
• List of earthquakes in Mexico

References

1. Kostoglodov, Vladimir; Ponce, Lautaro (10 January 1994). "Relationship between subduction and seismicity in the Mexican part of the Middle America Trench". Journal of Geophysical Research: Solid Earth. 99 (B1): 729–742. Bibcode:1994JGR....99..729K. doi:10.1029/93JB01556.
2. Santoyo, M. A. (1 October 2005). "Space-Time Clustering of Large Thrust Earthquakes along the Mexican Subduction Zone: An Evidence of Source Stress Interaction". Bulletin of the Seismological Society of America. 95 (5): 1856–1864. Bibcode:2005BuSSA..95.1856S. CiteSeerX 10.1.1.704.5130. doi:10.1785/0120040185. hdl:2433/193414.
3. ^ Nishenko, S. P.; Singh, S. K. (1 December 1987). "Conditional probabilities for the recurrence of large and great interplate earthquakes along the Mexican subduction zone". Bulletin of the Seismological Society of America. 77 (6): 2095–2114. CiteSeerX 10.1.1.127.6570.
4. M7.8 Tecomán, Colima, Mexico Earthquake of 22 January 2003 (PDF), United States Geological Survey
5. Engdahl, E. R.; Vallaseñor, A. (2002). "Global seismicity: 1900–1999" (PDF). International Handbook of Earthquake & Engineering Seismology. Part A, Volume 81A (First ed.). Academic Press. p. 705. ISBN 978-0124406520.
6. Singh, S. K.; Pacheco, J. F.; Alcantara, L.; Reyes, G.; Ordaz, M.; Iglesias, A.; Alcocer, S. M.; Gutierrez, C.; Valdes, C.; Kostoglodov, V.; Reyes, C.; Mikumo, T.; Quaas, R.; Anderson, J. G. (1 May 2003). "A Preliminary Report on the Tecoman, Mexico Earthquake of 22 January 2003 (Mw 7.4) and Its Effects". Seismological Research Letters. 74 (3): 279–289. Bibcode:2003SeiRL..74..279S. doi:10.1785/gssrl.74.3.279.
7. "Archived copy" (PDF). Archived from the original (PDF) on 2012-03-28. Retrieved 2011-07-24.{{cite web}}: CS1 maint: archived copy as title (link)
8. "Archived copy" (PDF). Archived from the original (PDF) on 2011-10-07. Retrieved 2011-07-23.{{cite web}}: CS1 maint: archived copy as title (link)
9. "El Comentario / Periódico Oficial de la Universidad de Colima".
10. http://culturacolima.gob.mx/espacios.php?o=teatrohidalgo
11. "Archived copy" (PDF). Archived from the original (PDF) on 2012-03-28. Retrieved 2011-07-28.{{cite web}}: CS1 maint: archived copy as title (link)
12. "Archived copy" (PDF). Archived from the original (PDF) on 2011-06-14. Retrieved 2011-07-23.{{cite web}}: CS1 maint: archived copy as title (link)
13. Santoyo, Miguel A.; Mikumo, Takeshi; Quintanar, Luis (September 2006). "Faulting process and coseismic stress change during the 30 January, 1973, Colima, Mexico interplate earthquake (Mw=7.6)" (PDF). Geofísica Internacional. 45 (3): 163–178. Bibcode:2006GeofI..45..163S. doi:10.22201/igeof.00167169p.2006.45.3.203.

External links

• The International Seismological Centre has a bibliography and/or authoritative data for this event.

• 1941 earthquakes
• Earthquakes in Mexico
• 1941 in Mexico
• History of Colima
• History of Michoacán
• Natural history of Colima
• Natural history of Michoacán
• 1941 disasters in Mexico
• April 1941 events in Mexico