LOCALLY FELT EARTH TREMOR REPORT


 

(UPDATE) INITIAL ANALYSIS FROM THE HONG KONG OBSERVATORY
INDICATED THAT AN EARTHQUAKE OF MAGNITUDE 3.7 HAS OCCURRED
AT 8:57 P.M. ON 3 JULY 2023 (MONDAY) NEAR COAST OF
SOUTHEASTERN CHINA. THE EPICENTRE IS LOCATED NEAR 23.90N,
114.50E, ABOUT 23 KILOMETRES WEST-NORTHWEST OF HEYUAN. THE
FOCAL DEPTH IS ABOUT 9 KILOMETRES.
 
EPICENTRE LOCATION MAP :
HTTPS://WWW.HKO.GOV.HK/EN/GTS/EQUAKE/MAP.HTM 
 
THE OBSERVATORY RECEIVED OVER TEN LOCALLY FELT REPORTS OF
MINOR SHAKING, THE DURATION OF WHICH WAS A FEW SECONDS.
INITIAL ESTIMATE GAVE A LOCAL INTENSITY OF III (THREE) ON
THE MODIFIED MERCALLI INTENSITY SCALE, THAT IS FELT
INDOORS. VIBRATION LIKE PASSING OF LIGHT TRUCKS. 
 
FOR DETAILED EXPLANATIONS ON THE MODIFIED MERCALLI
INTENSITY SCALE, PLEASE REFER TO THE FOLLOWING WEB PAGE:
HTTPS://WWW.HKO.GOV.HK/EN/GTS/EQUAKE/MMS.HTM

DISPATCHED BY HONG KONG OBSERVATORY AT 21:18 HKT ON 03.07.2023