Two strong earthquakes were recorded in the Caspian Sea with an interval of 7 hours. According to the information of the Republic Center of the Seismological Service of the National Academy of Sciences of Azerbaijan, the first earthquake of magnitude 3.1 occurred on October 19, at 01:02 local time. And the second tremor was recorded at 08:47. Both epicenters of the earthquake were located at a depth of 68 kilometers under the ground.