BEIJING, July 5 -- China on Saturday activated a Level-IV emergency response to flooding and typhoon in two provinces as Typhoon Danas approaches, according to the Ministry of Emergency Management.

Emergency measures were initiated by the State Flood Control and Drought Relief Headquarters in the eastern province of Fujian and the southern province of Guangdong, while a work team was dispatched to Fujian to assist local flood and typhoon control efforts.

The maximum wind force of Typhoon Danas, the fourth typhoon of this year, is estimated to reach grade-12 to grade-13 at a speed of 35-40 meters per second, according to meteorological authorities. It will approach the coastal regions in southwestern parts of Taiwan Island and northern parts of Fujian.

The National Meteorological Center issued a yellow alert for typhoon on Saturday evening, forecasting strong winds and rainstorms in affected areas from Saturday to Sunday.

China has a four-tier emergency response system, with Level I being the most severe response, and a four-tier weather warning system, with red representing the most severe warning, followed by orange, yellow and blue.