ATHENS (Reuters) - Two moderate earthquakes within minutes shook Athens on Tuesday but there were no reports of injuriesĺ or damage, the Athens Seismological Institute said. A spokesman said the first tremor measured 4.3 on the open-ended Richter scale and that the second one was smaller. "The epicentre was 30 km (19 miles) west of Athens. We have no reports of injuries or damage," the spokesman said. The tremors were mainly felt in the greater Athens region and in some parts of western Greece. The second quake hit two minutes after the first. Earthquakes are quite common in Greece. A 5.8-point quake hit Athens and southwestern Greece last month, sending people in some coastal towns running from their houses.