Interior Minister Ali Yerlikaya said police had killed the two shooters, whom he said were believed to belong to the DHKP-C group.
According to experts, the next earthquake in Istanbul, Turkey, could cause considerable damage to the city.
Turkish Muslim artist offers to stand by Israeli colleague Shahar Marcus
The Istanbul Music Festival took place over four days and included Haydn, Schoenberg, Gershwin, Piazzolla, Albeniz, jazz, and Turkish classical music along with other international artists.
The three individuals will be deported back to Israel at the end of the investigation into the incident.
Among the detainees were two young men from Sderot and seven from Rahat and the Bedouin diaspora.
A Japanese seismologist warned of the potential of devastating earthquakes and tsunamis, which could hit Istanbul in Turkey.
Turkish opposition MP accuses President Erdogan of using hate speech against the LGBT community for political gains.
Last year, the Iraqi parliament passed legislation criminalizing any form of "normalization" with Israel.
Erdogan certainly hopes to be reelected, if only to preside over the celebrations marking the 100th anniversary of the Republic of Turkey.