Earthquake · reviewed by a seismologist
M 5.9mww
218 km ENE of Nagqu, China
Yes. A magnitude 5.9 earthquake was recorded 218 km ENE of Nagqu, China at 11:25 UTC on 2026-10-25, 7.0 km deep. No felt reports to USGS yet.
- When
- Magnitude
- M 5.9 (mww)
- Depth
- 7.0 km below the surface
- Felt
- no reports yet
- Measured shaking
- intensity VII (ShakeMap)
- USGS impact alert
- green
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1 hour ago
This was a moderate earthquake. Shaking at this size can damage poorly built structures close to the epicentre.
At this magnitude and depth, people at rest would likely notice it out to about 328 km (204 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.
How big was it?
This earthquake released about 11 kilotons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 6.9 would have released about 32 times as much.
- Ridgecrest, California 2019 M 7.1 63× the energy of this one
- Loma Prieta, California 1989 M 6.9 32× the energy of this one
- Northridge, California 1994 M 6.7 16× the energy of this one
- This earthquake M 5.9 about 11 kilotons of TNT
- Mineral, Virginia 2011 M 5.8 this one released 1.4× more
- Magna, Utah 2020 M 5.7 this one released 2× more
Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.
For this area
The largest earthquake within 50 km in our catalogue was M 7.0 on 2026-10-22 — about 45 times the energy of this one.
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 32.4625, 94.0534. Map © OpenStreetMap contributors.
Aftershocks so far
No further earthquakes have been recorded within 50 km since this one.
Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.
Revisions
USGS refines a solution as more stations report. Every change we have seen is listed here.
| What changed | From | To | When |
|---|---|---|---|
| impact alert | yellow | green | |
| measured intensity | 7.12 | 7.11 | |
| location | 209 km ENE of Nagqu, China | 218 km ENE of Nagqu, China | |
| longitude | 94 | 94.05 | |
| latitude | 32.37 | 32.46 | |
| depth | 10 | 7 | |
| magnitude | 5.8 | 5.9 | |
| impact alert | not reported | yellow | |
| measured intensity | not reported | 7.12 |
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.