A minor earthquake measuring 4.7 on the Richter scale occured off the central coast of Vietnam Wednesday, with tremors felt in several places in Ho Chi Minh City, according to an official.
The earthquake happened off the coast of Phan Thiet Town at 8.55 a.m. and didn't cause any damage, Nguyen Hong Phuong, vice director of the Institute of Global Physics' earthquake and tsunami warning center, said.
Local people in Phan Thiet's Phu Trinh Ward said they felt their houses tremble for some three to four seconds.
Some buildings in HCMC's Phu Nhuan District and District 3 and the southern coastal province of Ba Ria - Vung Tau also felt tremors at around 9.30 a.m.
The institute is collecting related data and closely observing any resulting incidents, according to Phuong.
In November, 2007, the southern city was also affected when a 4.5-5 magnitude earthquake hit off the coast of Binh Thuan and Vung Tau.
Other seismic activity was reported in August 2005 in HCMC when an earthquake measuring 4-5 on the Ricter scale took place off the coast of Vung Tau Town.