A magnitude 6.1 earthquake struck off the shore of Indonesia's Java island on Friday, at a depth of 10km, Indonesia's geophysics agency (BKMG) said.
The epicentre was located 132 km north of Tuban in East Java province, BMKG said.
The tremors were felt strongly in East Java, its capital Surabaya, as well as cities in neighboring provinces, according to multiple postings by social media users in those areas.
The quake has no potential to trigger a tsunami, BMKG said.
There were no immediate reports of damage.

Truck and bus collision in India's Assam kills at least 23 people
Four killed in Ukrainian drone strike on industrial zone in Russia's Volgograd
Arab Parliament, GCC offer condolences to UAE over Fujairah traffic accident
Six people dead near Kenya's capital after building collapses
Kushner says US working toward 'largest prisoner exchange' of Russia's war in Ukraine
