Minor earthquake, 3.24 mag was detected near Culebra in Puerto Rico

A minor earthquake with magnitude 3.24 (ml/mb) was detected on Thursday, 67 kilometers (42 miles) from Culebra in Puerto Rico. The 3.24-magnitude earthquake was detected at 06:48:23 / 6:48 am (local time epicenter). Global time and date of event 04/09/25 / 2025-09-04 06:48:23 / September 4, 2025 @ 6:48 am UTC/GMT. Exact location of event, depth 25.82 km, -65.331333333333° West, 18.911833333333° North. Id of earthquake: pr71494658. Event ids that are associated: pr71494658. The epicenter was at a depth of 25.82 km (16 miles).

Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop), U.S. Virgin Islands (c. 109 000 pop). The epicenter was 73 km (46 miles) from Fajardo (c. 34 100 pop), 76 km (47 miles) from Charlotte Amalie (c. 20 000 pop), 79 km (49 miles) from Río Grande (c. 13 500 pop), 72 km (45 miles) from Luquillo (c. 8 300 pop), 79 km (49 miles) from Ceiba (c. 6 300 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Ceiba, Río Grande, Loíza.

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

Did you feel it?

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. 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: 67 km N of Culebra, Puerto Rico.

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Parameter	Value	Description
Magnitude	3.24 mb	The magnitude for the event.
Longitude	-65.331333333333° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	18.911833333333° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	25.82 km	Depth of the event in kilometers.
Place	67 km N of Culebra, 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	2025-09-04 06:48:23	Time when the event occurred. UTC/GMT
Updated	2025-09-04 06:59:21	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	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	12	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.7168	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.24 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	225	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	pr71494658	Id of event.
Event Code	71494658	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,pr71494658,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.24 mag was detected near Culebra in Puerto Rico

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