However, no loss of life or damage to property was reported, they said.
Mild tremors were felt near Bhachau in the recent past, but the intensity increased suddenly this evening, ISR officials said.
A devastating earthquake of 7.7 magnitude on Richter Scale had rocked Kutch on January 26, 2001, in which thousands of people were killed and more than 4 lakh houses destroyed.
People in Kutch and other parts of the state, including Ahmedabad, on Saturday paid homage to the victims of the 2001 earthquake.