M5.1 earthquake 43 km WNW of Puerto Bolívar, Ecuador
A magnitude 5.1 earthquake struck 43 km WNW of Puerto Bolívar, Ecuador on Sat, Jun 27, 1981, 4:54 PM GMT-5 (21:54 UTC), 49 km (30 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.1 (mb, body-wave), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1981-06-27 21:54:14 UTC
- Depth
- 49.0 km (30.4 mi), shallow
- Epicenter
- 3.052° S, 80.327° W
- Region
- Ecuador
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Magnitude estimates
Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.
| Mag. | Scale | Computed by | Notes |
|---|---|---|---|
| 5.1 | mb, body-wave | USGS National Earthquake Information Center | Preferred · Reviewed · 30 stations |
| 5.25 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
| 5.3 | Mwc, centroid moment | Global CMT project | Preliminary |
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 2.1 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 usp0001ech (also filed as gcmtb062781a, gcmt19810627215414, iscgem625808). Read Thu, Oct 1, 2026, 12:34 PM UTC.