Hong Kong residents reported feeling the tremors of a magnitude 4.2 earthquake over the sea south of Shanwei in Guangdong on Friday afternoon, according to the Observatory.
The forecaster said on Friday that it had received over 10 locally felt reports of minor shaking, with a duration of a few seconds.
“Initial analysis from the Hong Kong Observatory indicated that an earthquake of magnitude 4.2 occurred at 2.40pm on Friday over the sea south of Shanwei, Guangdong,” it said, adding its epicentre was about 200km (124 miles) southeast of Hong Kong.
“An initial estimate gave a local intensity of two on the Modified Mercalli Intensity Scale, that is felt by persons at rest, upper floors, or favourably placed.”
Last November, some residents also reported experiencing minor shaking following a magnitude 4.7 earthquake in Taiwan.