M5.8 earthquake 213 km NNW of Puerto Ayora, Ecuador
A magnitude 5.8 earthquake struck 213 km NNW of Puerto Ayora, Ecuador on Sun, Dec 29, 1940, 12:05 PM GMT-6 (18:05 UTC), 15 km (9 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.8 (Mw, moment), moderate
- Magnitude from
- ISC-GEM global catalog
- Local time
- UTC
- 1940-12-29 18:05:38 UTC
- Depth
- 15.0 km (9.3 mi), shallow
- Epicenter
- 1.113° N, 90.851° W
- Region
- Ecuador
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Magnitude uncertainty
- ±0.25
- Depth from
- From location
Nearby
Within 100 km, magnitude 2.8 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem901752. Read Thu, Oct 1, 2026, 4:54 AM UTC.