Deep, non-volcanic low-frequency tremors, which consist of swarms of intermittent weak signals at relatively low frequencies (1 to 8 hertz) and last from days to a few weeks once activity begins, were first discovered along Japan's Nankai trough, a location known to generate great earthquakes.

Armeconombank, together with Lufthansa German Airways and Hertz car renting company, introduce a unique offer in the card market of Armenia, MasterCard Standard Co-branded cards.