M5.8 Earthquake 191 km NW of Oula Xiuma, China — July 28, 2026
2026-07-28 03:34:05 UTC (2 hours ago) · approx. 10:34 AM UTC+7 local
Maximum shaking intensity MMI 7.3 (severe).
On July 28, 2026 at 03:34 UTC, a magnitude 5.8 shallow crustal earthquake struck 191 km NW of Oula Xiuma, China, at a depth of 10.0 km and coordinates 35.3866°, 99.5513°. The USGS PAGER system issued a yellow alert level for this event, indicating local impact possible. This earthquake was detected by 107 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 650, making it a moderate-impact event. The nearest populated place is Ziketan (population 24,758).
Physical scale: An earthquake of magnitude 5.8 releases seismic energy equivalent to roughly 8 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 6.1 km — a useful intuition for the size of the slip patch on the fault.
Nearest Populated Places
ShakeMap — predicted shaking intensity
Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.
Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS
Population exposure (USGS PAGER)
Estimated population that experienced each level of shaking. Based on the USGS PAGER rapid impact assessment, which combines ShakeMap output with global population grids.
| Shaking intensity (MMI) | Description | Population exposed |
|---|---|---|
| MMI 3 | weak | 2,421,628 |
| MMI 4 | light | 481,787 |
| MMI 5 | moderate | 41,699 |
| MMI 6 | strong | 2,351 |
| MMI 7 | very strong | 145 |
Earthquake Details
99.5513°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.8 earthquake near Oula Xiuma, China?
The magnitude 5.8 earthquake that struck 191 km NW of Oula Xiuma, China on July 28, 2026 at 03:34 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 35.3866°, 99.5513°, which is 191 km NW of Oula Xiuma, China. The nearest populated place is Ziketan (population 24,758).
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.8 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Location
Authoritative source: USGS event page (event ID: us6000tga9). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, July 28, 2026). M5.8 Earthquake 191 km NW of Oula Xiuma, China — July 28, 2026. Retrieved July 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tga9/