M5.5 earthquake 23 km ENE of Puyo, Ecuador
A magnitude 5.5 earthquake struck 23 km ENE of Puyo, Ecuador on Fri, Dec 18, 1987, 12:01 AM GMT-5 (05:01 UTC), 177 km (110 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.5 (mw), moderate
- Local time
- UTC
- 1987-12-18 05:01:23 UTC
- Depth
- 177.3 km (110.2 mi), intermediate-depth
- Epicenter
- 1.403° S, 77.803° 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.
- Depth from
- CONSTRAINED_BY_DEPTH_PHASES
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 usp0003bcm (also filed as gcmtb121887a, gcmt19871218050122, iscgem450952). Read Tue, Sep 22, 2026, 4:03 PM UTC.