Minor earthquake, 3.78 mag has occurred near Stella in Puerto Rico

A minor earthquake magnitude 3.78 (ml/mb) has struck on Saturday, 31 kilometers (19 miles) from Stella in Puerto Rico. Exact location, longitude -67.5318° West, latitude 18.2403° North, depth = 139 km. The temblor was detected at 04:43:06 / 4:43 am (local time epicenter). Unique identifier: pr2025067001. Ids that are associated to the event: us6000pxl4, pr2025067001. The epicenter of the earthquake was roughly 139 km (86 miles) below the earth’s surface. Exact time and date of earthquake 08/03/25 / 2025-03-08 04:43:06 / March 8, 2025 @ 4:43 am UTC/GMT.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Adjuntas, Adjuntas, Guayanilla. Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Epicenter of the event was 42 km (26 miles) from Mayagüez (c. 78 600 pop), 76 km (47 miles) from Yauco (c. 20 300 pop), 86 km (53 miles) from Adjuntas (c. 19 500 pop), 45 km (28 miles) from Aguadilla (c. 16 100 pop), 61 km (38 miles) from Isabela (c. 12 500 pop), 54 km (34 miles) from San Germán (c. 12 100 pop).

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. Each year there are an estimated 130,000 minor quakes in the world. In the past 24 hours, there have been four, in the last 10 days ten, in the past 30 days twenty-eight and in the last 365 days four hundred and twenty-two earthquakes of magnitude 3.0 or greater that has struck near.

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 31 km WSW of Stella, Puerto Rico.

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Parameter	Value	Description
Magnitude	3.78 mb	The magnitude for the event.
Longitude	-67.5318° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	18.2403° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	139 km	Depth of the event in kilometers.
Place	31 km WSW of Stella, 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	2025-03-08 04:43:06	Time when the event occurred. UTC/GMT
Updated	2025-03-08 05:15:20	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	220	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	pr	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,us,pr,	A comma-separated list of network contributors.
Number of Stations Used	19	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.4506	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.28 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	168	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	md	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	pr2025067001	Id of event.
Event Code	2025067001	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000pxl4,pr2025067001,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.78 mag has occurred near Stella in Puerto Rico

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