2011 Virginia earthquake
The USGS found that the farthest landslide from the 2011 Virginia earthquake was from the epicenter. This is by far the greatest landslide distance recorded from any other earthquake of similar magnitude. Previous studies of worldwide earthquakes indicated that landslides occurred no farther than from the epicenter of a magnitude 5.8 earthquake. The study suggested that the added information about East Coast earthquakes may prompt a revision of equations that predict ground shaking. "What makes this new study so unique is that it provides direct observational evidence from the largest earthquake to occur in more than 100 years in the eastern U.S. Now that we know more about the power of East Coast earthquakes, equations that predict ground shaking might need to be revised."
Matías Romero, Oaxaca
According to the US Geological Survey, early on September 23, 2017, a magnitude 6.1 earthquake struck 12 miles southeast of Matías Romero. The epicenter was approximately between the centers of the two more violent earthquakes seen earlier in the month. On September 8, an 8.1 magnitude quake had struck off of the southern Pacific coast, near Chiapas state. Mexico City, on September 19, then endured a 7.1 magnitude quake, which also marked the 32nd anniversary of the devastating 1985 earthquake, in which more than 10,000 people had been killed.