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1965 Oaxaca Earthquake

UTC time	??
Magnitude	Mw 7.5
Depth	12 km
Epicenter	15°23′N 96°07′W / 15.38°N 96.12°W / 15.38; -96.12
Casualties	6

The 1965 Oaxaca earthquake occurred in Mexico on August 23 at 13:46 with a moment magnitude of 7.5. Five people were reported dead in Mexico City and 1 in Oaxaca. There was an anomalous change in seismic activities before the earthquake. There was a quiescent stage from late 1963 to mid-1964, and it was followed by a renewal of seismic activities before the main shock. This earthquake was a shallow thrust earthquake in the interplate subduction zone, in which the Cocos Plate is subducting beneath the North American Plate.

References

1. E. Chael, G. Stewart, "Recent large earthquakes along the Middle America trench and their implications for the subduction process"
2. A. Iglesias, S. K. Singh, M. Ordaz, M. A. Santoyo, J. Pacheco, "The seismic alert system for Mexico City: An evaluation of performance and a strategy for its improvement"
3. Ohtake, M.; Matumoto, T.; Latham, Gary (1977), "Seismicity gap near Oaxaca, southern Mexico as a probable precursor to a large earthquake" (PDF), Pure and Applied Geophysics, 115, Springer: 375–385
4. http://www.geology.wisc.edu/~chuck/PDF/FCM_Oax_GJI08.pdf
5. http://www.eri.u-tokyo.ac.jp/seno/Papers/epsl_kato_seno.pdf

• Megathrust earthquakes in Mexico
• 1965 earthquakes