M5.6 earthquake 57 km N of Isabela, Puerto Rico
A magnitude 5.6 earthquake struck 57 km N of Isabela, Puerto Rico on Fri, Apr 12, 1968, 8:15 PM GMT-5 (01:15 UTC), 20 km (13 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.6 (mw), moderate
- Local time
- UTC
- 1968-04-13 01:15:30 UTC
- Depth
- 20.4 km (12.7 mi), shallow
- Epicenter
- 19.011° N, 66.927° W
- Region
- Puerto Rico
- 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
- ±0.20
- 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 iscgem823863. Read Tue, Sep 22, 2026, 9:39 AM UTC.