M 7.4 - 12 km SSW of Santa María Zapotitlán, Oaxaca, Mexico

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https://earthquake.usgs.gov/earthquakes/eventpage/us6000ah9t/executive
  • 2020-06-23 15:29:05 (UTC)
  • 16.029°N 95.901°W
  • 26.3 km depth
Earthquake in southern Oaxaca near coast.

Most of the Mexican landmass is on the westward moving North American plate. The Pacific Ocean floor south of Mexico is being carried northeastward by the underlying Cocos plate. Because oceanic crust is relatively dense, when the Pacific Ocean floor encounters the lighter continental crust of the Mexican landmass, the ocean floor is subducted beneath the North American plate creating the deep Middle American trench along Mexico's southern coast. Also as a result of this convergence, the westward moving Mexico landmass is slowed and crumpled creating the mountain ranges of southern Mexico and earthquakes near Mexico's southern coast. As the oceanic crust is pulled downward, it melts; the molten material is then forced upward through weaknesses in the overlying continental crust. This process has created a region of volcanoes across south-central Mexico known as the Cordillera Neovolcánica.
https://earthquake.usgs.gov/earthquakes/eventpage/us6000ah9t/region-info

@davenn , did your seismometer register it?
 
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davenn
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@davenn , did your seismometer register it?

Yes, very well, still early morning here. I saw it when I switched on the seismo. computer monitor this morning.
I hadn't had a chance to post a thread before leaving for work

zhi.gif
 
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chemisttree
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“Cordillera Neovolcánica,” I think I’ve found the perfect name for my next pet labradoodle!
 
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