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."
1951 East Rift Valley earthquakes
The East Rift Valley () is an area of rugged terrain formed by the interaction of the Philippine Sea and Eurasian tectonic plates in eastern Taiwan. Most of the area is sparsely populated by Taiwanese aborigines, but there are larger populations in the cities of Hualian and Taidong. The deadliest earthquake in the series struck at 05:34 on 22 October 1951, with an epicentre at 23.9°N 121.7°E, a few kilometres southwest of Hualian City, with a magnitude of 7.3, and was felt throughout Taiwan as well as on Penghu and Jinmen. The second quake to cause significant casualties hit at 02:50 on November 25 of the same year, again with a magnitude of 7.3, this time centred under the town of Yuli, Hualian.