M4.7 Earthquake 260 km NNW of Puerto Ayora, Ecuador — July 31, 2026
2026-07-31 16:04:11 UTC (2 hours ago) · approx. 10:04 AM UTC-6 local
On July 31, 2026 at 16:04 UTC, a magnitude 4.7 shallow crustal earthquake struck 260 km NNW of Puerto Ayora, Ecuador, at a depth of 10.0 km and coordinates 1.5255°, -90.9633°. This earthquake was detected by 47 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 340, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-90.9633°E
Technical Information
Common Questions
How strong was the magnitude 4.7 earthquake near Puerto Ayora, Ecuador?
The magnitude 4.7 earthquake that struck 260 km NNW of Puerto Ayora, Ecuador on July 31, 2026 at 16:04 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 1.5255°, -90.9633°, which is 260 km NNW of Puerto Ayora, Ecuador.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000th8m). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, July 31, 2026). M4.7 Earthquake 260 km NNW of Puerto Ayora, Ecuador — July 31, 2026. Retrieved July 31, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000th8m/