4.5

M4.5 Earthquake 29 km SW of Trà My, Vietnam — October 17, 2026

2026-10-17 18:48:10 UTC (2026-10-17) · approx. 1:48 AM UTC+7 local

MagnitudeM4.5(mb)
Time18:48 UTC≈ 1:48 AM UTC+7
Depth10.0 kmshallow crustal
Coordinates15.158°, 108.026°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 17, 2026 at 18:48 UTC, a magnitude 4.5 shallow crustal earthquake struck 29 km SW of Trà My, Vietnam, at a depth of 10.0 km and coordinates 15.1576°, 108.0258°. This earthquake was detected by 25 seismic stations with good location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 15.16°, 108.03°

Earthquake Details

Magnitude
4.5 mb
Depth
10.0 km
shallow crustal
Location
15.1576°N
108.0258°E

Technical Information

Event ID
us6000u31a
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
25
Azimuthal Gap
106.0°
Min Station Distance
3.831°
RMS Residual
0.35 sec
Last Updated
2026-10-24 15:27:07 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near Trà My, Vietnam?

The magnitude 4.5 earthquake that struck 29 km SW of Trà My, Vietnam on October 17, 2026 at 18:48 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 15.1576°, 108.0258°, which is 29 km SW of Trà My, Vietnam.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000u31a). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, October 17, 2026). M4.5 Earthquake 29 km SW of Trà My, Vietnam — October 17, 2026. Retrieved October 24, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000u31a/