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."
Mount Lofty Ranges
There are several major normal faults in the Adelaide region, trending northeast to southwest defining these blocks:All the fault zones are still active today, along with the rest of the ranges, and minor earthquakes are relatively common. Larger quakes in the southern ranges are fairly rare: the last to hit a major centre was the 1954 Adelaide earthquake that occurred on 1 March. It measured 5.5 on the Richter scale.