M6.6 earthquake 119 km E of Macas, Ecuador
A magnitude 6.6 earthquake struck 119 km E of Macas, Ecuador on Thu, Jul 27, 1961, 8:05 PM GMT-5 (01:05 UTC), 142 km (88 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.6 (mw), strong
- Local time
- UTC
- 1961-07-28 01:05:31 UTC
- Depth
- 142.1 km (88.3 mi), intermediate-depth
- Epicenter
- 2.287° S, 77.035° W
- Region
- Ecuador
- Strongest shaking
- V, moderate shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- V, moderate shaking
- Peak ground acceleration
- 6.3% of gravity
- Peak ground velocity
- 1.2 cm/s
- Map
- Automatic
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
- ±0.59
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 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 iscgem877087. Read Mon, Sep 21, 2026, 10:59 PM UTC.