The China National Seismological Network said it detected three moderate earthquakes in the country's north and northwest on Tuesday, about one month after the May 12 massive earthquake.
A 5.2-magnitude earthquake jolted the northern Inner Mongolia Autonomous Region at 2:05 p.m.. The epicenter was located along the border between Oroqen Banner and Arong Banner at 49.0 degrees north latitude and 122.5 degrees east longitude, the network said.
The epicenter was inside a forest and there were no reports of casualties so far, said the Inner Mongolia regional earthquake bureau.
The tremor was felt in Dayangshu Town of Oroqen Banner, where local residents said beds were shaking and lighting bulbs were swaying. People rushed out of their homes and students were evacuated from classrooms.
The quake was also felt in Arong Banner, Hailar City and Zhalantun City of Inner Mongolia.
Just hours later, two earthquakes measuring at 5.5 and 5.1 on the Richter scale respectively jolted the Tanggula Range within the Haixi Prefecture of the northwestern Qinghai Province at 6:04 p.m and 7:04 p.m.
The 5.5-magnitude quake centered at 33.2 degrees north latitude and 91.9 degrees east longitude, while the other one at 33.3 degrees north and 91.9 degrees east.
Casualties and damages are not immediately available. However, according to the center, the affected area is sparsely populated as it is on an altitude of about 5,000 meters above sea level.
Approximately the same area had been rocked by another moderate quake a day earlier.
The 5.0-magnitude tremor hit at 1:56 a.m. Monday, with the epicenter at 33.2 degrees north latitude and 92.2 degrees east longitude. No casualties were reported.
China has seen a total of 11,380 aftershocks of the 8.0-magnitude earthquake on May 12 that have killed 69,146 people and led to the missing of 17,516 others.
In the 24 hours ending Tuesday noon, 186 aftershocks were monitored in the quake zone, according to the China Earthquake Administration.
One of the tremors measured between 5.0-5.9 and all the others measured at or below 3.9 magnitude, the administration said.
Source:Xinhua
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