Two earthquakes occurred in Sanya on Hainan, China in one day in the same area, but there is no tsunami threat



Suddenly, after several years of calm, the residents of Hainan again witnessed the earthquakes that occurred just 35 kilometers from the center of Sanya, in the Tianya area of Sanya, for some time, the operation of high-speed trains on Hainan Island was urgently stopped.


The first earthquake occurred in Beijing time at 10 hours 48 minutes on August 20, 2019, in the Tianyi district of Sanya City, Hainan Province (the epicenter of the earthquake was: 18.51 degrees north latitude, longitude 109.41 degrees), strength 3.2 points on the Richter scale, the depth of the outbreak was 9 kilometers.


The second earthquake occurred exactly at the same place, according to Beijing time at 19 hours 17 minutes on August 20, 2019, in the Tianyi region of Sanya, Hainan Province (the epicenter of the earthquake was: 18.51 degrees north latitude, longitude 109.41 degrees), strength- 4.2 on the Richter scale, the depth of the focus was 12 kilometers - look at the photo above for data from the site of China-wide earthquake monitoring.


We constantly monitor news media and social networks in Chinese in Hainan Province and found out almost immediately, but did not dare to report it, so as the largest earthquake monitoring centers in our region, including the US Geological Survey, did not report anything, so we decided to wait, when officials from Hainan Province make statements on this subject, including due to the construction of the Sanya Highway in the area Wuzhishan, in the process of building this highway, explosives are often used to lay roads through this mountainous area, in any case, our The site, as usual, is the first in Russian and English to report these earthquakes in Sanya, Hainan.


So, experts from the Hainan Province Seismological Bureau held a meeting of the main media to answer questions of concern to residents.  No casualties or collapses were reported. Hainan Provincial Emergency Management Authority issued a notice in which municipal and district emergency departments were invited to immediately report the situation to the party and government leaders, as well as to organize the appropriate departments to conduct geological disaster checks and preventive measures, as well as to check damage to reservoir dams. Damaged dams should be reinforced, damage checks of various buildings and structures should be carried out.


 According to the Sanya Sanitary Administration, there were small cracks in the corners of individual houses and a collapse of a single earthen wall in the village of Baolong District Tianyah city of Sanya.


At a press conference held by the Hainan Provincial Seismological Bureau, Hu Jiuchang, director of the Hainan Provincial Earthquake Prediction Center, said that since 1969 there have been only 5 earthquakes of the same intensity in the southern and coastal areas of Hainan Island. Asked how long these earthquakes would last, Hu Jiuchang said that it is currently unlikely that a destructive earthquake of magnitude 5 or higher will occur in the original earthquake zone.


Tsunami threat was not announced in Sanya and other cities of Hainan, China, on our forum you will find information about other earthquakes in Hainan in Russian and English.  


  As for the tsunami, there haven’t been any of them in Hainan in recent decades, but we have been told in the Chinese media that on the islands near Hainan, Chinese geologists found sea shells in places that were several kilometers from the coast, which is possible if these shells threw tsunamis that were huge in height, which were earlier, before the start of systematic observations.  


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