Taking on national responsibility! Accurately detecting the 5.2 magnitude earthquake in Liuzhou, providing crucial support for disaster prevention and mitigation.
Jun 17,2026
At 00:21 on May 18, 2026, a magnitude 5.2 earthquake struck Liunan District, Liuzhou City, Guangxi Province (24.38°N, 109.26°E), with a focal depth of 8 kilometers. Prior to this earthquake, Liunan District had experienced multiple seismic events. The Guangxi Earthquake Administration, in cooperation with our company, urgently deployed a mobile monitoring array composed of UGL-3C equipment in the area, successfully capturing the waveforms of the main shock and subsequent aftershocks, providing crucial information for on-site disaster assessment and subsequent risk evaluation.
At 7:46 AM on May 17th, a magnitude 2.5 earthquake struck Liunan District, Liuzhou City. The Guangxi Earthquake Administration immediately activated its emergency response. With remote support from our technical staff, they completed equipment configuration and deployed a seismic array in an area approximately 7 kilometers from the epicenter by evening of the same day. From the evening of the 17th onwards, multiple perceptible earthquakes occurred in the area, and the deployed UGL-3C array effectively recorded these seismic events.
At 00:21 on May 18, a 5.2-magnitude earthquake struck Liunan District, the strongest seismic event to hit the region in recent times. Following the earthquake, the State Council Earthquake Relief Headquarters Office and the Ministry of Emergency Management immediately activated a Level IV national earthquake disaster emergency response, dispatching a working group to the area to guide earthquake relief efforts. The China Earthquake Administration activated a Level III emergency service response, requiring strengthened monitoring and analysis of the seismic situation. The Guangxi Earthquake Administration simultaneously activated a Level II emergency response, fully organizing search and rescue operations and disaster assessment. The epicenter was located in Taiyangcun Town, Liunan District, where seven self-built houses along the street collapsed, and some other houses developed cracks.
During this 5.2 magnitude earthquake, all of our pre-deployed UGL-3C nodal seismographs effectively monitored the complete waveform data of the earthquake, including key information such as real-time P-waves and S-waves. This data was transmitted back to the Guangxi Earthquake Bureau's data center in real time via the 4G network, providing timely and reliable technical support for on-site earthquake situation consultation and judgment, focal mechanism solution calculation, and subsequent risk assessment.
In the recent emergency monitoring of the Liuzhou earthquake, the Guowei UGL-3C nodal seismograph, with its core advantages of rapid deployment, flexible networking, and second-level real-time data transmission, transformed the emergency response from "passively waiting for data from sparse fixed stations" to "actively and rapidly forming a high-density near-field monitoring array in the epicenter area." This allowed it to complete deployment and capture complete near-field waveforms before the magnitude 5.2 mainshock, providing real-time, high-resolution data support for earthquake situation consultation that is difficult to achieve with traditional fixed stations. Previously, the UGL-3C has been widely used in key domestic and international monitoring projects such as real-time monitoring of mobile arrays in Yunnan Province and the construction of the Kenya earthquake observation network. The practical performance of the UGL-3C in foreshock identification and mainshock monitoring in this instance further validates its professional capabilities and reliability in earthquake emergency response and seismic assessment.
In the future, Guowei will continue to deepen its research and development of earthquake monitoring technology, use accurate data to support decision-making and deployment, and ensure that "underground safety" is no longer a blind spot. It will provide more reliable scientific and technological support for long-term monitoring and emergency response in key areas across the country (reservoirs, dams, bridges, slopes, etc.), and contribute professional strength to safeguarding the lives and property of the people and building a solid urban safety defense line.
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