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."
2003 Puerto Armuelles earthquake
The 2003 Puerto Armuelles earthquake occurred on December 25 at 02:11 local time (07:11 UTC). The epicenter was located in Panama, at about 7 km east of Puerto Armuelles, near the Panama-Costa Rica border. The earthquake had a magnitude of 6.5. Two people were reported dead in Puerto Armuelles. There was building damage in Panama and Costa Rica. Power outage lasted for about four hours in Puerto Armuelles. The maximal intensity was MM VIII in Finca Naranjo, Costa Rica. The intensity was MM VII in Armuelles, Panama, and MM IV in Limón and the Central Valley, Costa Rica, including San José. This earthquake could also be felt in Panama City.