Other major recorded earthquakes in the 17th,18th,and 19th centuries may have been produced by movement of the same fault that caused Tuesday's disaster.
VOA: standard.2010.01.13
Although on the samefault line, this earthquake was much less powerful than the previous one.
The issue, however, has already become political, with the samefault lines forming as they did during the debt debate that paralyzed Washington last month.
Geologists warn that the two earthquakes occurred on the samefault line, which may signal hyperactive seismic activity in the region, South China Morning Post reports.