Minor earthquake, 3.25 mag strikes near Brenas in Puerto Rico

A minor earthquake with magnitude 3.25 (ml/mb) was detected on Sunday, 91 km N of Brenas, Puerto Rico (57 miles). The earthquake was roughly at a depth of 34.6 km (21 miles). Exact location of event, longitude -66.264666666667 West, latitude 19.2905 North, depth = 34.6 km. The 3.25-magnitude earthquake was detected at 03:09:37 / 3:09 am (local time epicenter). All ids that are associated to the event: pr71481973. Unique identifier: pr71481973. Exact time and date of earthquake 11/05/25 / 2025-05-11 03:09:37 / May 11, 2025 @ 3:09 am UTC/GMT.

In the past 24 hours, there have been five, in the last 10 days fourteen, in the past 30 days thirty-three and in the last 365 days three hundred and fifty-four earthquakes of magnitude 3.0 or greater that have been detected in the same area. Every year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home 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: 91 km N of Brenas, Puerto Rico.

Brenas Puerto Rico

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Parameter	Value	Description
Magnitude	3.25 mb	The magnitude for the event.
Longitude	-66.264666666667° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	19.2905° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	34.6 km	Depth of the event in kilometers.
Place	91 km N of Brenas, 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	2025-05-11 03:09:37	Time when the event occurred. UTC/GMT
Updated	2025-05-11 03:57:32	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	162	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	,pr,	A comma-separated list of network contributors.
Number of Stations Used	18	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.8471	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.18 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	261	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	pr71481973	Id of event.
Event Code	71481973	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,pr71481973,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.25 mag strikes near Brenas in Puerto Rico

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