evidence: Visual analysis: Location and evolution of the quakes in Turkey and Syria [...] Dozens of violent aftershocks are continuing to rock southeastern Turkey and northern Syria following an earthquake measuring 7.8 on the Richter scale that struck early Monday and that has so far led to more than 2,300 deaths and thousands of injuries. Over 2,800 buildings have collapsed in Turkey. The epicenter - located in Turkish territory, about 600 kilometers (370 miles) southeast of the capital, Ankara, and 100 kilometers (60 miles) north of Aleppo - is located in an area of high seismic activity, where the Anatolian and Arabian tectonic plates converge. [...] Monday’s earthquake in Turkey and Syria measured 7.8 on the Richter scale, which classifies it as a Major earthquake, causing major damage to buildings and structures, including those that are designed to be earthquake-protected. Major earthquakes occur 10 to 20 times per year.