Minor earthquake, 3.9 mag was detected near Tallaboa in Puerto Rico

A minor earthquake magnitude 3.9 (ml/mb) strikes 7 kilometers (4 miles) from Tallaboa in Puerto Rico on Wednesday. The 3.9-magnitude earthquake has occurred at 14:34:44 / 2:34 pm (local time epicenter). Global time and date of event 12/03/25 / 2025-03-12 14:34:44 / March 12, 2025 @ 2:34 pm UTC/GMT. Exact location, longitude -66.766° West, latitude 17.9497° North, depth = 9.175 km. Event ids that are associated to the earthquake: us6000pybj. Id of event: us6000pybj. The epicenter was at a depth of 9.175 km (6 miles).

Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Cataño, Levittown, Guaynabo (min 5000 pop). Event epicenter was 82 km (51 miles) from Bayamón (c. 203 500 pop), 17 km (11 miles) from Ponce (c. 152 600 pop), 82 km (51 miles) from Caguas (c. 86 800 pop), 83 km (51 miles) from Guaynabo (c. 81 400 pop), 48 km (30 miles) from Mayagüez (c. 78 600 pop), 58 km (36 miles) from Arecibo (c. 49 300 pop).

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days nine, in the past 30 days eighteen and in the last 365 days two hundred and ninety-three earthquakes of magnitude 3.0 or greater that have been detected nearby. There are an estimated 130,000 minor quakes in the world each year.

How would you describe the shaking?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 7 km SW of Tallaboa, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

More information

Parameter	Value	Description
Magnitude	3.9 mb	The magnitude for the event.
Longitude	-66.766° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	17.9497° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	9.175 km	Depth of the event in kilometers.
Place	7 km SW of Tallaboa, Puerto Rico	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-03-12 14:34:44	Time when the event occurred. UTC/GMT
Updated	2025-03-12 15:05:21	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt		The total number of felt reports
CDI		The maximum reported intensity for the event.
MMI		The maximum estimated instrumental intensity for the event.
Alert Level		The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status	reviewed	Indicates whether the event has been reviewed by a human.
Tsunami	0	This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG	234	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	us	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,us,	A comma-separated list of network contributors.
Number of Stations Used	23	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.217	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.75 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	97	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	ml	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	us6000pybj	Id of event.
Event Code	6000pybj	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000pybj,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.9 mag was detected near Tallaboa in Puerto Rico

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