M5.5 earthquake 8 km SSE of Balzar, Ecuador
A magnitude 5.5 earthquake struck 8 km SSE of Balzar, Ecuador on Sat, Apr 28, 1973, 7:21 AM GMT-5 (12:21 UTC), 109 km (68 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.5 (mb), moderate
- Local time
- UTC
- 1973-04-28 12:21:11 UTC
- Depth
- 109.0 km (67.7 mi), intermediate-depth
- Epicenter
- 1.438° S, 79.875° 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.
- Stations used
- 102
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 1 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayEcuador earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00001ma (also filed as iscgem762050). Read Tue, Sep 22, 2026, 5:28 PM UTC.