An earthquake measuring 5.7 magnitude on the Richter scale struck the Punjab province, northeast of Pakistan, on Wednesday.The epicenter of the earthquake was at a depth of 10 km, the National Seismic Monitoring Center reported in a statement.There have been no reports of casualties or material losses due to the earthquakes so far.Pakistan experiences violent earthquakes. In 2005, the country was hit by a 7.6-magnitude earthquake that killed thousands of people.Source: Qatar News Agency