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Aftershocks expected after powerful quake in Caspian Sea

07 June 2014 11:45 (UTC +04:00)

Baku. Konul Kamilgizi – APA. The Republic Seismological Service Center clarified the causes of the recent earthquakes in the Caspian Sea.

Head Director of RSSC Gurban Yetirmishli told APA that all the earthquake focuses covering Absheron and Baku are in the Caspian Sea.

He said that when the quake jolts the Caspian Sea it is palpable in Baku and Absheron.

Yetirmishli informed that seismic events are observed in the Caspian Sea in different times. He said that quakes with various magnitudes shake the Caspian Sea for a few days. “All of these were foreshocks before the strong quake in the morning today. This quake was a shock. Following it, aftershocks are expected. Aftershocks are inevitable after such a strong tremor. Aftershocks can be in different magnitudes. Anyway we will see the process”, he said.

The Head Director emphasized that the earthquake focus is calm now and the process stopped. Yetirmishli said that the actions in the focus will be studied. But there is no danger, because the earthquake focus is at great depth.

Noting that there are activations and regular earthquakes in the Caspian Sea, Yetirmishli said that the earthquake focus is near “Azeri-Chirag-Gunashli” oil fields. “Even the causes of the 36 tremors in the Caspian Sea within a month have been examined. At a meeting with BP representatives, it was noted that oil production decreased as a result of the earthquakes. Because decomposition is observed after each quakes. Sometimes the fault passes through the oil fields and decomposition is observed during an earthquake. In each of faults oil flows in the decompositions may decrease the production”, he said.

5.6-magnitude quake today shook the Caspian Sea at 11:05 local time. The depth of tremors was 61 km. The quake was palpable in Baku.