The epicentral area included Ferruzzano, where many houses collapsed almost completely, and 158 persons, or 8 % of its population, were killed.
22.
No surface ruptures were present in the epicentral area, but landslides closed roads and railroad tracks for at least a week while cleanup took place.
23.
During a survey following the earthquake, evidence of coastal uplift was detected when dead and decomposing intertidal organisms were discovered along the beaches in the epicentral region.
24.
Once epicentral distances have been calculated from at least three seismographic measuring stations, it is a simple matter to find out where the epicenter was located using trilateration.
25.
In the epicentral area, the average slip in Beichuan Fault was about vertical, horizontal-parallel to the fault, and horizontal-perpendicular to the fault.
26.
The event resulted in the deaths of 8 people and damaged or destroyed 60 homes in the region, with rock slides and power failures affecting the epicentral area.
27.
Where A is the maximum excursion of the Wood-Anderson seismograph, the empirical function A 0 depends only on the epicentral distance of the station, \ delta.
28.
The epicentral area included only one town ( Ferruzzano ), where many houses collapsed almost completely, and 158 persons, or 8 % of its population, were killed.
29.
Ground disturbances that were created by the earthquakes were also surveyed, both in the valley and in the foothills, with both vertical and horizontal displacements present in the epicentral area.
30.
Data from four stations from the Institute for Petroleum Research and Geophysics of Israel plus seven stations from Jordan's Natural Resource Authority recorded aftershocks in the epicentral area that met the restriction.
