4.5

M4.5 Earthquake 38 km SE of Tena, EcuadorNovember 6, 2025

2025-11-06 23:11:15 UTC (2025-11-06) · approx. 6:11 PM UTC-5 local

MagnitudeM4.5(mb)
Time23:11 UTC6:11 PM UTC-5
Depth186.9 kmintermediate depth
Coordinates-1.272°, -77.604°
Felt byNo felt reports
Status✓ Reviewed by USGS

On November 6, 2025 at 23:11 UTC, a magnitude 4.5 intermediate depth earthquake struck 38 km SE of Tena, Ecuador, at a depth of 186.9 km and coordinates -1.2716°, -77.6039°. This earthquake was detected by 75 seismic stations with excellent 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 -1.27°, -77.60°

Earthquake Details

Magnitude
4.5 mb
Depth
186.9 km
intermediate depth
Location
-1.2716°N
-77.6039°E

Technical Information

Event ID
us6000rm0g
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
75
Azimuthal Gap
62.0°
Min Station Distance
0.475°
RMS Residual
0.74 sec
Last Updated
2026-01-29 22:05:32 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near Tena, Ecuador?

The magnitude 4.5 earthquake that struck 38 km SE of Tena, Ecuador on November 6, 2025 at 23:11 UTC had a depth of 186.9 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -1.2716°, -77.6039°, which is 38 km SE of Tena, Ecuador.

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.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: us6000rm0g). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, November 6, 2025). M4.5 Earthquake 38 km SE of Tena, EcuadorNovember 6, 2025. Retrieved May 26, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rm0g/