Magnitude 4.9 Quake Strikes Gaoxian in Yibin
SingTao · 2 SOURCESabout 4 hours ago1 MIN
Summary
A magnitude 4.9 earthquake hit Gaoxian in Yibin, Sichuan, at 1:08pm on August 7, with the official epicenter at 28.51 degrees north and 104.67 degrees east and a depth of 6km . An automated system had initially detected a quake of around magnitude 5.0 near Gaoxian, but officials said the final result should follow the formal report . Local residents felt obvious shaking, while the national warning system issued alerts within seconds .
Key Points
- The China Earthquake Networks Center formally measured the quake at magnitude 4.9 in Gaoxian, Yibin, at 1:08pm on August 7 .
- The official epicenter was listed at 28.51°N, 104.67°E, with a shallow focal depth of 6km .
- An automated reading earlier estimated a quake of about magnitude 5.0 near Gaoxian at 28.54°N, 104.68°E .
- Authorities said the automated detection was preliminary and that the formal bulletin should be treated as the final result .
- China’s earthquake early warning network said it produced an alert 5.7 seconds after the quake for 4,352,689 nearby mobile users .
Why It Matters
The shallow depth and clearly felt shaking suggest the event drew immediate public attention even though the magnitude remained moderate . The rapid alert distribution to millions of users also highlights how earthquake warning systems are being used to support emergency awareness in densely populated surrounding areas .